IO500 Revised Call For Submissions Mid-2020 List
by committee＠io500.org
New Deadline: 13 July 2020 AoE
NOTE: Given the short timeframe from the original announcement and
complexities with some of the changes for this list, the deadline has
been pushed out to give the community more time to participate. The BoF
announcing the winners will be online 23 July 2020.
Announcement:
The IO500 [1] is now accepting and encouraging submissions for the
upcoming 6th IO500 list. Once again, we are also accepting submissions
to the 10 Node Challenge to encourage the submission of small scale
results. The new ranked lists will be announced via live-stream at a
virtual session. We hope to see many new results.
The benchmark suite is designed to be easy to run and the community has
multiple active support channels to help with any questions. Please note
that submissions of all sizes are welcome; the site has customizable
sorting so it is possible to submit on a small system and still get a
very good per-client score for example. Additionally, the list is about
much more than just the raw rank; all submissions help the community by
collecting and publishing a wider corpus of data. More details below.
Following the success of the Top500 in collecting and analyzing
historical trends in supercomputer technology and evolution, the IO500
[1] was created in 2017, published its first list at SC17, and has grown
exponentially since then. The need for such an initiative has long been
known within High-Performance Computing; however, defining appropriate
benchmarks had long been challenging. Despite this challenge, the
community, after long and spirited discussion, finally reached consensus
on a suite of benchmarks and a metric for resolving the scores into a
single ranking.
The multi-fold goals of the benchmark suite are as follows:
* Maximizing simplicity in running the benchmark suite
* Encouraging optimization and documentation of tuning parameters
for
performance
* Allowing submitters to highlight their "hero run" performance
numbers
* Forcing submitters to simultaneously report performance for
challenging IO patterns.
Specifically, the benchmark suite includes a hero-run of both IOR and
mdtest configured however possible to maximize performance and establish
an upper-bound for performance. It also includes an IOR and mdtest run
with highly constrained parameters forcing a difficult usage pattern in
an attempt to determine a lower-bound. Finally, it includes a namespace
search as this has been determined to be a highly sought-after feature
in HPC storage systems that has historically not been well-measured.
Submitters are encouraged to share their tuning insights for
publication.
The goals of the community are also multi-fold:
* Gather historical data for the sake of analysis and to aid
predictions of storage futures
* Collect tuning data to share valuable performance optimizations
across the community
* Encourage vendors and designers to optimize for workloads beyond
"hero runs"
* Establish bounded expectations for users, procurers, and
administrators
10 NODE I/O CHALLENGE
The 10 Node Challenge is conducted using the regular IO500 benchmark,
however, with the rule that exactly 10 client nodes must be used to run
the benchmark. You may use any shared storage with, e.g., any number of
servers. When submitting for the IO500 list, you can opt-in for
"Participate in the 10 compute node challenge only", then we will not
include the results into the ranked list. Other 10-node node submissions
will be included in the full list and in the ranked list. We will
announce the result in a separate derived list and in the full list but
not on the ranked IO500 list at https://io500.org/.
This information and rules for ISC20 submissions are available here:
https://www.vi4io.org/io500/rules/submission
Thanks,
The IO500 Committee
Links:
------
[1] http://io500.org/
2 years, 9 months
Re: [IO-500] Using third party software for finds
by committee＠io500.org
Dear Ken,
Thanks for your email about creating a find wrapper to StarFish. That is
allowed and all that is required is to submit your wrapper script along
with your submission. This would be a fantastic contribution and we very
much look forward to seeing how well it works. As always, thanks for
your continued excellent participation with IO500!
Thanks,
The IO500 Committee
> -------------------
> From: Julian Kunkel via IO-500 <io-500(a)vi4io.org>
> Date: Mon, Jun 1, 2020 at 12:32 PM
> Subject: Re: [IO-500] Using third party software for finds
> To: Carlile, Ken <carlilek(a)janelia.hhmi.org>
> CC: IO-500 <io-500(a)vi4io.org>
>
> Hi Ken,
> thanks for your feedback. In
> https://www.vi4io.org/io500/rules/submission you find Rule 7:
>> If a tool other than the included pfind is used for the find phase, then it must follow the same input and output behavior as the included pfind and the source code must be included in the submission.
> based on your comment, the rule might need some clarification.
>
> IMHO the intention is that everyone will be able to use the tool to
> reproduce your results (and not having some "magic" result).
> A proprietary tool that is nowhere distributed (e.g., written by you
> or a company) would be problematic.
> I think a vendor ensures that their great tool is somehow available to
> their customers at least.
>
> A logical approach to the rule could be:
> if the tool is closed source (but typically available on the storage
> system you use), you should include a wrapper file in the submission
> like the sfind wrapper:
> https://github.com/VI4IO/io500-app/blob/master/find/sfind.sh
> If you make a modification to an existing open-source find, then you
> must include the whole source code (such as a copy of the modified
> pfind code).
>
> Maybe the committee will discuss this and clarify the rules.
>
> Best,
> Julian
>
> P.S. These statements merely reflect my own personal view; the only
> mechanism for announcing official IO500 policies and decisions is the
> committee(a)io500.org email address.
>
> On Mon, Jun 1, 2020 at 7:17 PM Carlile, Ken via IO-500 <io-500(a)vi4io.org> wrote:
>>
>> Hi all (and Committee in particular),
>>
>> Is it permissible to use an external piece of software for the find portion wrapped by some code to make it accept the find-style parameters (-name, -size, -newer), and if so, what code would need to be submitted?
>>
>> I am looking at using Starfish to do the find via doing a scan and then a query from within a wrapper script that the io500 script would call. I believe at least some of the Starfish software is closed source, so I obviously wouldn't be able to submit their entire codebase!
>>
>>
>> Thanks,
>> Ken Carlile
>> Sr. Storage Engineer
>> HHMI/Janelia Research Campus
>> 571-209-4363
>>
>> _______________________________________________
>> IO-500 mailing list
>> IO-500(a)vi4io.org
>> https://www.vi4io.org/mailman/listinfo/io-500
>
> --
> Dr. Julian Kunkel
> Lecturer, Department of Computer Science
> +44 (0) 118 378 8218
> http://www.cs.reading.ac.uk/
> https://hps.vi4io.org/
> PGP Fingerprint: 1468 1A86 A908 D77E B40F 45D6 2B15 73A5 9D39 A28E
> _______________________________________________
> IO-500 mailing list
> IO-500(a)vi4io.org
> https://www.vi4io.org/mailman/listinfo/io-500
2 years, 10 months
Using third party software for finds
by Carlile, Ken
Hi all (and Committee in particular),
Is it permissible to use an external piece of software for the find portion wrapped by some code to make it accept the find-style parameters (-name, -size, -newer), and if so, what code would need to be submitted?
I am looking at using Starfish to do the find via doing a scan and then a query from within a wrapper script that the io500 script would call. I believe at least some of the Starfish software is closed source, so I obviously wouldn't be able to submit their entire codebase!
Thanks,
Ken Carlile
Sr. Storage Engineer
HHMI/Janelia Research Campus
571-209-4363
2 years, 10 months
Find phase - discrepancies between io500.sh & io500 C version. C-version fails
by Pinkesh Valdria
I made some progress over the weekend to troubleshoot why find phase was not working, but I am not out of the woods. Appreciate if someone can confirm if I am on the right path or acknowledge if the below are known issues and there are workarounds for them.
Thanks for your help. It’s a long email, but detailed to ensure, there is not a lot of back-n-forth.
Here are some differences I found and workaround I had to use.
Issue1:
Io500 (C version) expects a field labelled: external-extra-args in the config.ini file, but the non-C version (io500.sh) logic is looking for field labelled: “external-args” (without “-extra-“) , see below line:
https://github.com/VI4IO/io500-app/blob/master/io500.sh#L229
io500_find_cmd_args="$(get_ini_param find external-args)"
less config-full.ini
[find]
# Set to an external script to perform the find phase
external-script =
# Extra arguments for external scripts
external-extra-args =
# Startup arguments for external scripts
external-mpi-args =
# Set the number of processes for pfind
nproc =
# Pfind queue length
pfind-queue-length = 10000
# Pfind Steal from next
pfind-steal-next = FALSE
# Parallelize the readdir by using hashing. Your system must support this!
pfind-parallelize-single-dir-access-using-hashing = FALSE
Temporary workaround: I changed the io500.sh code to look for: io500_find_cmd_args="$(get_ini_param find external-extra-args)"
Issue2: I had to set io500_find_mpi to True in the io500.sh script to avoid getting this error: “io500_find_mpi: unbound variable” , but I don’t know if there is a different way to set the value for the C-version using config.ini file, can someone share how to pass that value for the C-app version?
function setup_find {
io500_find_mpi="True"
Issue3: How do I validate that the parameters I am setting in the config.ini file are been used at runtime. I set the following, but don’t see them below:
[find]
external-script = /mnt/beeond/io500-app/bin/pfind
#nproc = 30
pfind-queue-length = 2000
pfind-steal-next = TRUE
pfind-parallelize-single-dir-access-using-hashing = FALSE
io500 – C version hangs at the below command and I don’t see queue length, steal-next, etc
[find]
t_start = 2020-06-01 08:28:30
exe = /mnt/beeond/io500-app/bin/pfind ./out//2020.06.01-06.57.23-app -newer ./out//2020.06.01-06.57.23-app/timestampfile -size 3901c -name "*01*"
nproc = 1
Issue4: Manual workaround to make “find” phase work by setting some parameters in io500.sh, but they are not passed to the C-version and hence that fails.
In io500.sh script:
function setup_find {
io500_find_mpi="True"
io500_find_cmd_args="-N -q 2000 -s $io500_stonewall_timer -r $io500_result_dir/pfind_results"
Non-C version - success
[Starting] find
[Exec] mpiexec --allow-run-as-root -mca btl self -x UCX_TLS=rc,self,sm -x HCOLL_ENABLE_MCAST_ALL=0 -mca coll_hcoll_enable 0 -x UCX_IB_TRAFFIC_CLASS=105 -x UCX_IB_GID_INDEX=3 -n 30 -npernode 10 --hostfile /mnt/beeond/hostsfile.cn /mnt/beeond/io500-app/bin/pfind ./out//2020.06.01-06.57.23-scr -newer ./out//2020.06.01-06.57.23-scr/timestampfile -size 3901c -name "*01*" -N -q 2000 -s 300 -r ./results//2020.06.01-06.57.23-scr/pfind_results
[Results] in ./results//2020.06.01-06.57.23-scr/find.txt.
[FIND] MATCHED 28170/15966876 in 44.6593 seconds
[RESULT] IOPS phase 3 find 357.520 kiops : time 44.66 seconds
io500 – C version hangs at the below command and I don’t see queue length, steal-next, etc
[find]
t_start = 2020-06-01 08:28:30
exe = /mnt/beeond/io500-app/bin/pfind ./out//2020.06.01-06.57.23-app -newer ./out//2020.06.01-06.57.23-app/timestampfile -size 3901c -name "*01*"
nproc = 1
Issue5: As you can see in issue#4, I am passing some parameters with bash variables, if I do the same in the config.ini file, they will be passed as is without getting interpreted by the bash script. How do I pass such variable for the C-version of io500 ?
Already tried the below and they are not interpreted when processed by io500 C-app version.
In config.ini file:
external-extra-args = -s \$io500_stonewall_timer -r \$io500_result_dir/pfind_results
or
external-extra-args = -s $io500_stonewall_timer -r $io500_result_dir/pfind_results
[find]
t_start = 2020-05-31 11:43:52
exe = /mnt/beeond/io500-app/bin/pfind -s $io500_stonewall_timer -r $io500_result_dir/pfind_results ./out//2020.05.31-10.52.56-app -newer ./out//2020.05.31-10.52.56-app/timestampfile -size 3901c -name "*01*"
nproc = 1
[find]
t_start = 2020-05-31 15:55:52
exe = /mnt/beeond/io500-app/bin/pfind -s \$io500_stonewall_timer -r \$io500_result_dir/pfind_results ./out//2020.05.31-15.55.38-app -newer ./out//2020.05.31-15.55.38-app/timestampfile -size 3901c -name "*01*"
nproc = 1
This is a small test cluster
less 2020.06.01-06.57.23-scr/result_summary.txt
[RESULT] BW phase 1 ior_easy_write 6.062 GiB/s : time 362.17 seconds
[RESULT] IOPS phase 1 mdtest_easy_write 7.300 kiops : time 2054.93 seconds
[RESULT] BW phase 2 ior_hard_write 1.605 GiB/s : time 321.58 seconds
[RESULT] IOPS phase 2 mdtest_hard_write 3.173 kiops : time 304.69 seconds
[RESULT] IOPS phase 3 find 357.520 kiops : time 44.66 seconds
[RESULT] BW phase 3 ior_easy_read 8.269 GiB/s : time 265.51 seconds
[RESULT] IOPS phase 4 mdtest_easy_stat 144.149 kiops : time 104.06 seconds
[RESULT] BW phase 4 ior_hard_read 3.847 GiB/s : time 134.18 seconds
[RESULT] IOPS phase 5 mdtest_hard_stat 82.220 kiops : time 11.76 seconds
[RESULT] IOPS phase 6 mdtest_easy_delete 54.334 kiops : time 276.07 seconds
[RESULT] IOPS phase 7 mdtest_hard_read 22.822 kiops : time 42.37 seconds
[RESULT] IOPS phase 8 mdtest_hard_delete 8.042 kiops : time 123.97 seconds
[SCORE] Bandwidth 4.19424 GiB/s : IOPS 31.5378 kiops : TOTAL 11.5012
C-version app – partial result – which hangs at find:
[root@inst-5n58i-good-crow results]# less 2020.06.01-06.57.23-app/result.txt | egrep "\[|score"
[ior-easy-write]
score = 6.136592
[mdtest-easy-write]
score = 41.913878
[timestamp]
[ior-hard-write]
score = 1.538194
[mdtest-hard-write]
score = 3.012750
[find]
[root@inst-5n58i-good-crow results]#
From: Pinkesh Valdria <pinkesh.valdria(a)oracle.com>
Date: Saturday, May 30, 2020 at 3:01 AM
To: Andreas Dilger <adilger(a)dilger.ca>
Cc: <io-500(a)vi4io.org>
Subject: Re: [IO-500] Io500 runs twice - is that expected starting 2020 ?
Thanks Andreas,
The C-app benchmark failed, I mean it never completed and there was no score at the end, I waited for 8 hours before I did ctrl-c . It only has 4 results vs 12 results in the first section. Are there special logs to see for the C version of the benchmark.
The below is a very small development cluster I am using until I figure out how to run IO500 correctly.
[Leaving] datafiles in ./out//2020.05.29-17.31.34-scr
[Summary] Results files in ./results//2020.05.29-17.31.34-scr
[Summary] Data files in ./out//2020.05.29-17.31.34-scr
[RESULT] BW phase 1 ior_easy_write 6.188 GiB/s : time 357.44 seconds
[RESULT] BW phase 2 ior_hard_write 1.132 GiB/s : time 367.41 seconds
[RESULT] BW phase 3 ior_easy_read 8.090 GiB/s : time 273.37 seconds
[RESULT] BW phase 4 ior_hard_read 3.726 GiB/s : time 111.69 seconds
[RESULT] IOPS phase 1 mdtest_easy_write 4.263 kiops : time 3518.34 seconds
[RESULT] IOPS phase 2 mdtest_hard_write 2.953 kiops : time 303.52 seconds
[RESULT] IOPS phase 3 find 91.550 kiops : time 173.64 seconds
[RESULT] IOPS phase 4 mdtest_easy_stat 137.243 kiops : time 109.30 seconds
[RESULT] IOPS phase 5 mdtest_hard_stat 84.140 kiops : time 10.65 seconds
[RESULT] IOPS phase 6 mdtest_easy_delete 55.311 kiops : time 271.19 seconds
[RESULT] IOPS phase 7 mdtest_hard_read 21.778 kiops : time 41.16 seconds
[RESULT] IOPS phase 8 mdtest_hard_delete 7.133 kiops : time 129.24 seconds
[SCORE] Bandwidth 3.81212 GiB/s : IOPS 24.1149 kiops : TOTAL 9.58796
The io500.sh was run
Running the C version of the benchmark now
IO500 version io500-isc20
[RESULT] ior-easy-write 6.233210 GiB/s : time 359.216 seconds
[RESULT] mdtest-easy-write 3.750549 kIOPS : time 3999.448 seconds
[RESULT] ior-hard-write 1.415903 GiB/s : time 349.737 seconds
[RESULT] mdtest-hard-write 3.006432 kIOPS : time 305.006 seconds
^C
[root@inst-q7cdd-good-crow io500-app]#
From: Andreas Dilger <adilger(a)dilger.ca>
Date: Saturday, May 30, 2020 at 2:33 AM
To: Pinkesh Valdria <pinkesh.valdria(a)oracle.com>
Cc: <io-500(a)vi4io.org>
Subject: Re: [IO-500] Io500 runs twice - is that expected starting 2020 ?
Hi Pinkesh,
The dual runs of the IO500 benchmark for this list are intentional,
and documented in the README-ISC20.txt file in the source tree.
This is to allow comparison between the historical io500.sh script and the
new C application that runs the same IOR, mdtest, and find commands.
Please submit both results for ISC'20.
We wanted to be sure that the transition to the new C-app didn't
introduce any errors in the results. The need to run the benchmark
twice will hopefully be gone for the SC'20 list.
Cheers, Andreas(*)
* speaking on my own behalf and not on behalf of the IO500 board
On May 29, 2020, at 16:02, Pinkesh Valdria via IO-500 <io-500(a)vi4io.org> wrote:
Hello IO-500 experts,
I am trying to configure io500 . When I run it, it runs twice, first one is regular and 2nd one is called “Running the C version of the benchmark now”. Is it because I misconfigured it or is it required to run both, starting 2020 ? My config*.ini file is below.
[root@inst-q7cdd-good-crow io500-app]# ./io500.sh config-test1.ini
System: inst-q7cdd-good-crow
…..
Running the IO500 Benchmark now
[Creating] directories
…..
[Summary] Results files in ./results//2020.05.29-17.31.34-scr
[Summary] Data files in ./out//2020.05.29-17.31.34-scr
[RESULT] BW phase 1 ior_easy_write 6.188 GiB/s : time 357.44 seconds
[RESULT] BW phase 2 ior_hard_write 1.132 GiB/s : time 367.41 seconds
[RESULT] BW phase 3 ior_easy_read 8.090 GiB/s : time 273.37 seconds
[RESULT] BW phase 4 ior_hard_read 3.726 GiB/s : time 111.69 seconds
[RESULT] IOPS phase 1 mdtest_easy_write 4.263 kiops : time 3518.34 seconds
[RESULT] IOPS phase 2 mdtest_hard_write 2.953 kiops : time 303.52 seconds
[RESULT] IOPS phase 3 find 91.550 kiops : time 173.64 seconds
[RESULT] IOPS phase 4 mdtest_easy_stat 137.243 kiops : time 109.30 seconds
[RESULT] IOPS phase 5 mdtest_hard_stat 84.140 kiops : time 10.65 seconds
[RESULT] IOPS phase 6 mdtest_easy_delete 55.311 kiops : time 271.19 seconds
[RESULT] IOPS phase 7 mdtest_hard_read 21.778 kiops : time 41.16 seconds
[RESULT] IOPS phase 8 mdtest_hard_delete 7.133 kiops : time 129.24 seconds
[SCORE] Bandwidth 3.81212 GiB/s : IOPS 24.1149 kiops : TOTAL 9.58796
The io500.sh was run
Running the C version of the benchmark now
IO500 version io500-isc20
<currently running …when I posted this question ….
***************************************************
config-test1.ini (END)
***************************************************
[global]
datadir = ./out/
resultdir = ./results/
timestamp-resultdir = TRUE
# Chose parameters that are very small for all benchmarks
[debug]
stonewall-time = 300 # for testing
[ior-easy]
transferSize = 2m
blockSize = 102400m
[mdtest-easy]
API = POSIX
# Files per proc
n = 500000
[ior-hard]
API = POSIX
# Number of segments 10000000
segmentCount = 400000
[mdtest-hard]
API = POSIX
# Files per proc 1000000
n = 40000
[find]
external-script = /mnt/beeond/io500-app/bin/pfind
pfind-parallelize-single-dir-access-using-hashing = FALSE
***************************************************
_______________________________________________
IO-500 mailing list
IO-500(a)vi4io.org
https://www.vi4io.org/mailman/listinfo/io-500
2 years, 10 months
Re: [IO-500] IO-500 Digest, Vol 34, Issue 10
by Pinkesh Valdria
Can I get an invite to join slack. The website page says, ask admin to invite.
On 6/1/20, 8:43 AM, "io-500-bounces(a)vi4io.org on behalf of io-500-request(a)vi4io.org" <io-500-bounces(a)vi4io.org on behalf of io-500-request(a)vi4io.org> wrote:
Send IO-500 mailing list submissions to
io-500(a)vi4io.org
To subscribe or unsubscribe via the World Wide Web, visit
https://urldefense.com/v3/__https://www.vi4io.org/mailman/listinfo/io-500...
or, via email, send a message with subject or body 'help' to
io-500-request(a)vi4io.org
You can reach the person managing the list at
io-500-owner(a)vi4io.org
When replying, please edit your Subject line so it is more specific
than "Re: Contents of IO-500 digest..."
Today's Topics:
1. Re: Find phase - discrepancies between io500.sh & io500 C
version. C-version fails (John Bent)
----------------------------------------------------------------------
Message: 1
Date: Mon, 1 Jun 2020 09:42:45 -0600
From: John Bent <johnbent(a)gmail.com>
To: Julian Kunkel <juliankunkel(a)googlemail.com>
Cc: Mark Nelson <mnelson(a)redhat.com>, io-500(a)vi4io.org
Subject: Re: [IO-500] Find phase - discrepancies between io500.sh &
io500 C version. C-version fails
Message-ID:
<CAGfFL-z4Ny6gQkfOfkApdjAem-C6CiKJcYE8fE6BsZfp9u0JDQ(a)mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Definitely like github for issues. Personally I prefer the mailing list
over slack for discussions though. For me, it feels easier to search and
easier to group things into one coherent thread. I might be showing my age
with this preference. :)
On Mon, Jun 1, 2020 at 9:35 AM Julian Kunkel via IO-500 <io-500(a)vi4io.org>
wrote:
> Thanks all for your reporting,
> I personally agree with the approach: we should try to keep the
> mailing list for most important discussions and post such error
> messages either as issues in GitHub or discuss them on Slack to
> minimize traffic.
>
> Thanks & Best,
> Julian
>
> On Mon, Jun 1, 2020 at 4:05 PM Mark Nelson via IO-500 <io-500(a)vi4io.org>
> wrote:
> >
> > On 6/1/20 8:44 AM, Pinkesh Valdria via IO-500 wrote:
> >
> > > I made some progress over the weekend to troubleshoot why find phase
> > > was not working, but I am not out of the woods. Appreciate if
> > > someone can confirm if I am on the right path or acknowledge if the
> > > below are known issues and there are workarounds for them.
> > >
> > > Thanks for your help. It’s a long email, but detailed to ensure,
> > > there is not a lot of back-n-forth.
> > >
> > > Here are some differences I found and workaround I had to use.
> > >
> > > *_Issue1: _*
> > >
> > > Io500 (C version) expects a field labelled: external-extra-args in the
> > > config.ini file, but the non-C version (io500.sh) logic is looking
> > > for field labelled: “external-args” (without “-extra-“) , see below
> > > line:
> > >
> > > https://urldefense.com/v3/__https://github.com/VI4IO/io500-app/blob/maste...
> > >
> > >
> > > io500_find_cmd_args="$(get_ini_param find external-args)"
> > >
> > >
> > > less config-full.ini
> > >
> > > [find]
> > >
> > > # Set to an external script to perform the find phase
> > >
> > > external-script =
> > >
> > > # Extra arguments for external scripts
> > >
> > > external-extra-args =
> > >
> > > # Startup arguments for external scripts
> > >
> > > external-mpi-args =
> > >
> > > # Set the number of processes for pfind
> > >
> > > nproc =
> > >
> > > # Pfind queue length
> > >
> > > pfind-queue-length = 10000
> > >
> > > # Pfind Steal from next
> > >
> > > pfind-steal-next = FALSE
> > >
> > > # Parallelize the readdir by using hashing. Your system must support
> this!
> > >
> > > pfind-parallelize-single-dir-access-using-hashing = FALSE
> > >
> > > *Temporary workaround*: I changed the io500.sh code to look for:
> > > /io500_find_cmd_args="$(get_ini_param find external-extra-args)"/
> > >
> > > *_Issue2_*: I had to set*__*io500_find_mpi to True in the io500.sh
> > > script to avoid getting this error: “/io500_find_mpi: unbound
> > > variable/” , but I don’t know if there is a different way to set the
> > > value for the C-version using config.ini file, can someone share how
> > > to pass that value for the C-app version?
> > >
> > > function setup_find {
> > >
> > > io500_find_mpi="True"
> > >
> > > *_Issue3:_***How do I validate that the parameters I am setting in the
> > > config.ini file are been used at runtime. I set the following, but
> > > don’t see them below:
> > >
> > > [find]
> > >
> > > external-script = /mnt/beeond/io500-app/bin/pfind
> > >
> > > #nproc = 30
> > >
> > > pfind-queue-length = 2000
> > >
> > > pfind-steal-next = TRUE
> > >
> > > pfind-parallelize-single-dir-access-using-hashing = FALSE*__*
> > >
> > > io500 – C version hangs at the below command and I don’t see queue
> > > length, steal-next, etc
> > >
> > > [find]
> > >
> > > t_start = 2020-06-01 08:28:30
> > >
> > > exe = /mnt/beeond/io500-app/bin/pfind ./out//2020.06.01-06.57.23-app
> > > -newer ./out//2020.06.01-06.57.23-app/timestampfile -size 3901c -name
> > > "*01*"
> > >
> > > nproc = 1
> > >
> > > *_Issue4_*: Manual workaround to make “find” phase work by setting
> > > some parameters in io500.sh, but they are not passed to the C-version
> > > and hence that fails.
> > >
> > > In io500.sh script:
> > >
> > > function setup_find {
> > >
> > > io500_find_mpi="True"
> > >
> > > io500_find_cmd_args="-N -q 2000 -s $io500_stonewall_timer -r
> > > $io500_result_dir/pfind_results"
> > >
> > > __
> > >
> > > _Non-C version - success _
> > >
> > > [Starting] find
> > >
> > > [Exec] mpiexec --allow-run-as-root -mca btl self -x UCX_TLS=rc,self,sm
> > > -x HCOLL_ENABLE_MCAST_ALL=0 -mca coll_hcoll_enable 0 -x
> > > UCX_IB_TRAFFIC_CLASS=105 -x UCX_IB_GID_INDEX=3 -n 30 -npernode 10
> > > --hostfile /mnt/beeond/hostsfile.cn /mnt/beeond/io500-app/bin/pfind
> > > ./out//2020.06.01-06.57.23-scr -newer
> > > ./out//2020.06.01-06.57.23-scr/timestampfile -size 3901c -name "*01*"
> > > -N -q 2000 -s 300 -r ./results//2020.06.01-06.57.23-scr/pfind_results
> > >
> > > [Results] in ./results//2020.06.01-06.57.23-scr/find.txt.
> > >
> > > [FIND] MATCHED 28170/15966876 in 44.6593 seconds
> > >
> > > [RESULT] IOPS phase 3 find 357.520
> > > kiops : time 44.66 seconds
> > >
> > > _io500 – C version hangs at the below command and I don’t see queue
> > > length, steal-next, etc _
> > >
> > > [find]
> > >
> > > t_start = 2020-06-01 08:28:30
> > >
> > > exe = /mnt/beeond/io500-app/bin/pfind ./out//2020.06.01-06.57.23-app
> > > -newer ./out//2020.06.01-06.57.23-app/timestampfile -size 3901c -name
> > > "*01*"
> > >
> > > nproc = 1
> > >
> > > *_Issue5_*: As you can see in issue#4, I am passing some parameters
> > > with bash variables, if I do the same in the config.ini file, they
> > > will be passed as is without getting interpreted by the bash script.
> > > How do I pass such variable for the C-version of io500 ?
> > >
> > > Already tried the below and they are not interpreted when processed by
> > > io500 C-app version.
> > >
> > > In config.ini file:
> > >
> > > external-extra-args = -s \$io500_stonewall_timer -r
> > > \$io500_result_dir/pfind_results
> > >
> > > or
> > >
> > > external-extra-args = -s $io500_stonewall_timer -r
> > > $io500_result_dir/pfind_results
> > >
> > > [find]
> > >
> > > t_start = 2020-05-31 11:43:52
> > >
> > > exe = /mnt/beeond/io500-app/bin/pfind -s $io500_stonewall_timer -r
> > > $io500_result_dir/pfind_results ./out//2020.05.31-10.52.56-app -newer
> > > ./out//2020.05.31-10.52.56-app/timestampfile -size 3901c -name "*01*"
> > >
> > > nproc = 1
> > >
> > > [find]
> > >
> > > t_start = 2020-05-31 15:55:52
> > >
> > > exe = /mnt/beeond/io500-app/bin/pfind -s \$io500_stonewall_timer -r
> > > \$io500_result_dir/pfind_results ./out//2020.05.31-15.55.38-app -newer
> > > ./out//2020.05.31-15.55.38-app/timestampfile -size 3901c -name "*01*"
> > >
> > > nproc = 1
> > >
> > > This is a small test cluster
> > >
> > > less 2020.06.01-06.57.23-scr/result_summary.txt
> > >
> > > [RESULT] BW phase 1 ior_easy_write 6.062
> > > GiB/s : time 362.17 seconds
> > >
> > > [RESULT] IOPS phase 1 mdtest_easy_write 7.300
> > > kiops : time 2054.93 seconds
> > >
> > > [RESULT] BW phase 2 ior_hard_write 1.605
> > > GiB/s : time 321.58 seconds
> > >
> > > [RESULT] IOPS phase 2 mdtest_hard_write 3.173
> > > kiops : time 304.69 seconds
> > >
> > > [RESULT] IOPS phase 3 find 357.520
> > > kiops : time 44.66 seconds
> > >
> > > [RESULT] BW phase 3 ior_easy_read 8.269
> > > GiB/s : time 265.51 seconds
> > >
> > > [RESULT] IOPS phase 4 mdtest_easy_stat 144.149
> > > kiops : time 104.06 seconds
> > >
> > > [RESULT] BW phase 4 ior_hard_read 3.847
> > > GiB/s : time 134.18 seconds
> > >
> > > [RESULT] IOPS phase 5 mdtest_hard_stat 82.220
> > > kiops : time 11.76 seconds
> > >
> > > [RESULT] IOPS phase 6 mdtest_easy_delete 54.334
> > > kiops : time 276.07 seconds
> > >
> > > [RESULT] IOPS phase 7 mdtest_hard_read 22.822
> > > kiops : time 42.37 seconds
> > >
> > > [RESULT] IOPS phase 8 mdtest_hard_delete 8.042
> > > kiops : time 123.97 seconds
> > >
> > > [SCORE] Bandwidth 4.19424 GiB/s : IOPS 31.5378 kiops : TOTAL 11.5012
> > >
> > > C-version app – partial result – which hangs at find:
> > >
> > > [root@inst-5n58i-good-crow results]# less
> > > 2020.06.01-06.57.23-app/result.txt | egrep "\[|score"
> > >
> > > [ior-easy-write]
> > >
> > > score = 6.136592
> > >
> > > [mdtest-easy-write]
> > >
> > > score = 41.913878
> > >
> > > [timestamp]
> > >
> > > [ior-hard-write]
> > >
> > > score = 1.538194
> > >
> > > [mdtest-hard-write]
> > >
> > > score = 3.012750
> > >
> > > [find]
> > >
> > > [root@inst-5n58i-good-crow results]#
> > >
> >
> > FWIW the default version of find is still working the same as it did
> > previously for us. This is not really related to what you are seeing,
> > but what I'm still noticing is that we're getting an unreasonable find
> > advantage when our easy and hard create results are highly skewed (which
> > I'm still working on debugging since we are still sometimes seeing a lot
> > of variation). This is from an 8 node development cluster:
> >
> >
> > First run (C-app in this case):
> >
> > [RESULT] ior-easy-write 59.443067 GiB/s : time 467.383
> seconds
> > [RESULT] mdtest-easy-write 277.570531 kIOPS : time 369.282
> seconds
> > [RESULT] ior-hard-write 11.037549 GiB/s : time 333.391
> seconds
> > [RESULT] mdtest-hard-write 48.336249 kIOPS : time 328.619
> seconds
> > [RESULT] find 512.379261 kIOPS : time 230.722
> seconds
> > [RESULT] ior-easy-read 70.285275 GiB/s : time 397.338
> seconds
> > [RESULT] mdtest-easy-stat 627.847802 kIOPS : time 165.087
> seconds
> > [RESULT] ior-hard-read 13.879120 GiB/s : time 275.325
> seconds
> > [RESULT] mdtest-hard-stat 179.562335 kIOPS : time 1221.149
> seconds
> > [RESULT] mdtest-easy-delete 140.591170 kIOPS : time 917.852
> seconds
> > [RESULT] mdtest-hard-read 43.742740 kIOPS : time 362.040
> seconds
> > [RESULT] mdtest-hard-delete 11.804945 kIOPS : time 1341.281
> seconds
> > [SCORE] Bandwidth 28.284600 GB/s : IOPS 124.102186 kiops : TOTAL
> 59.246778
> >
> >
> > Second run (Script):
> >
> > [RESULT] BW phase 1 ior_easy_write 55.296 GiB/s : time
> > 477.21 seconds
> > [RESULT] BW phase 2 ior_hard_write 10.749 GiB/s : time
> > 331.08 seconds
> > [RESULT] BW phase 3 ior_easy_read 67.308 GiB/s : time
> > 391.89 seconds
> > [RESULT] BW phase 4 ior_hard_read 14.842 GiB/s : time
> > 239.77 seconds
> > [RESULT] IOPS phase 1 mdtest_easy_write 278.851 kiops : time
> > 367.23 seconds
> > [RESULT] IOPS phase 2 mdtest_hard_write 8.455 kiops : time
> > 323.59 seconds
> > [RESULT] IOPS phase 3 find 1470.910 kiops : time
> > 71.48 seconds
> > [RESULT] IOPS phase 4 mdtest_easy_stat 967.127 kiops : time
> > 105.89 seconds
> > [RESULT] IOPS phase 5 mdtest_hard_stat 47.136 kiops : time
> > 58.04 seconds
> > [RESULT] IOPS phase 6 mdtest_easy_delete 224.795 kiops : time
> > 455.53 seconds
> > [RESULT] IOPS phase 7 mdtest_hard_read 46.749 kiops : time
> > 58.52 seconds
> > [RESULT] IOPS phase 8 mdtest_hard_delete 28.490 kiops : time
> > 99.08 seconds
> > [SCORE] Bandwidth 27.7589 GiB/s : IOPS 121.449 kiops : TOTAL 58.0628
> >
> >
> > We don't really "deserve" a score of 58 on that second run because the
> > only reason find was so fast was that we wrote out far less
> > mdtest_hard_write data.
> >
> >
> > Mark
> >
> > > *From: *Pinkesh Valdria <pinkesh.valdria(a)oracle.com>
> > > *Date: *Saturday, May 30, 2020 at 3:01 AM
> > > *To: *Andreas Dilger <adilger(a)dilger.ca>
> > > *Cc: *<io-500(a)vi4io.org>
> > > *Subject: *Re: [IO-500] Io500 runs twice - is that expected starting
> > > 2020 ?
> > >
> > > Thanks Andreas,
> > >
> > > The C-app benchmark failed, I mean it never completed and there was
> > > no score at the end, I waited for 8 hours before I did ctrl-c . It
> > > only has 4 results vs 12 results in the first section. Are there
> > > special logs to see for the C version of the benchmark.
> > >
> > > The below is a very small development cluster I am using until I
> > > figure out how to run IO500 correctly.
> > >
> > > [Leaving] datafiles in ./out//2020.05.29-17.31.34-scr
> > >
> > > [Summary] Results files in ./results//2020.05.29-17.31.34-scr
> > >
> > > [Summary] Data files in ./out//2020.05.29-17.31.34-scr
> > >
> > > [RESULT] BW phase 1 ior_easy_write 6.188
> > > GiB/s : time 357.44 seconds
> > >
> > > [RESULT] BW phase 2 ior_hard_write 1.132
> > > GiB/s : time 367.41 seconds
> > >
> > > [RESULT] BW phase 3 ior_easy_read 8.090
> > > GiB/s : time 273.37 seconds
> > >
> > > [RESULT] BW phase 4 ior_hard_read 3.726
> > > GiB/s : time 111.69 seconds
> > >
> > > [RESULT] IOPS phase 1 mdtest_easy_write 4.263
> > > kiops : time 3518.34 seconds
> > >
> > > [RESULT] IOPS phase 2 mdtest_hard_write 2.953
> > > kiops : time 303.52 seconds
> > >
> > > [RESULT] IOPS phase 3 find 91.550
> > > kiops : time 173.64 seconds
> > >
> > > [RESULT] IOPS phase 4 mdtest_easy_stat 137.243
> > > kiops : time 109.30 seconds
> > >
> > > [RESULT] IOPS phase 5 mdtest_hard_stat 84.140
> > > kiops : time 10.65 seconds
> > >
> > > [RESULT] IOPS phase 6 mdtest_easy_delete 55.311
> > > kiops : time 271.19 seconds
> > >
> > > [RESULT] IOPS phase 7 mdtest_hard_read 21.778
> > > kiops : time 41.16 seconds
> > >
> > > [RESULT] IOPS phase 8 mdtest_hard_delete 7.133
> > > kiops : time 129.24 seconds
> > >
> > > [SCORE] Bandwidth 3.81212 GiB/s : IOPS 24.1149 kiops : TOTAL 9.58796
> > >
> > > The io500.sh was run
> > >
> > > Running the C version of the benchmark now
> > >
> > > IO500 version io500-isc20
> > >
> > > [RESULT] ior-easy-write 6.233210 GiB/s : time 359.216 seconds
> > >
> > > [RESULT] mdtest-easy-write 3.750549 kIOPS : time 3999.448
> seconds
> > >
> > > [RESULT] ior-hard-write 1.415903 GiB/s : time 349.737 seconds
> > >
> > > [RESULT] mdtest-hard-write 3.006432 kIOPS : time 305.006 seconds
> > >
> > > ^C
> > >
> > > [root@inst-q7cdd-good-crow io500-app]#
> > >
> > > *From: *Andreas Dilger <adilger(a)dilger.ca>
> > > *Date: *Saturday, May 30, 2020 at 2:33 AM
> > > *To: *Pinkesh Valdria <pinkesh.valdria(a)oracle.com>
> > > *Cc: *<io-500(a)vi4io.org>
> > > *Subject: *Re: [IO-500] Io500 runs twice - is that expected starting
> > > 2020 ?
> > >
> > > Hi Pinkesh,
> > >
> > > The dual runs of the IO500 benchmark for this list are intentional,
> > >
> > > and documented in the README-ISC20.txt file in the source tree.
> > >
> > > This is to allow comparison between the historical io500.sh script and
> the
> > >
> > > new C application that runs the same IOR, mdtest, and find commands.
> > >
> > > Please submit both results for ISC'20.
> > >
> > > We wanted to be sure that the transition to the new C-app didn't
> > >
> > > introduce any errors in the results. The need to run the benchmark
> > >
> > > twice will hopefully be gone for the SC'20 list.
> > >
> > > Cheers, Andreas(*)
> > >
> > > * speaking on my own behalf and not on behalf of the IO500 board
> > >
> > >
> > >
> > >
> > > On May 29, 2020, at 16:02, Pinkesh Valdria via IO-500
> > > <io-500(a)vi4io.org> wrote:
> > >
> > >
> > >
> > > Hello IO-500 experts,
> > >
> > > I am trying to configure io500 . When I run it, it runs twice,
> > > first one is regular and 2^nd one is called “Running the C version
> > > of the benchmark now”. Is it because I misconfigured it or is it
> > > required to run both, starting 2020 ? My config*.ini file is
> > > below.
> > >
> > > [root@inst-q7cdd-good-crow io500-app]# ./io500.sh config-test1.ini
> > >
> > > System: inst-q7cdd-good-crow
> > >
> > > …..
> > >
> > > Running the IO500 Benchmark now
> > >
> > > [Creating] directories
> > >
> > > …..
> > >
> > > [Summary] Results files in ./results//2020.05.29-17.31.34-scr
> > >
> > > [Summary] Data files in ./out//2020.05.29-17.31.34-scr
> > >
> > > [RESULT] BW phase 1 ior_easy_write 6.188 GiB/s :
> > > time 357.44 seconds
> > >
> > > [RESULT] BW phase 2 ior_hard_write 1.132 GiB/s :
> > > time 367.41 seconds
> > >
> > > [RESULT] BW phase 3 ior_easy_read 8.090 GiB/s
> > > : time 273.37 seconds
> > >
> > > [RESULT] BW phase 4 ior_hard_read 3.726 GiB/s :
> > > time 111.69 seconds
> > >
> > > [RESULT] IOPS phase 1 mdtest_easy_write 4.263 kiops
> > > : time 3518.34 seconds
> > >
> > > [RESULT] IOPS phase 2 mdtest_hard_write 2.953 kiops
> > > : time 303.52 seconds
> > >
> > > [RESULT] IOPS phase 3 find 91.550 kiops :
> > > time 173.64 seconds
> > >
> > > [RESULT] IOPS phase 4 mdtest_easy_stat 137.243 kiops :
> > > time 109.30 seconds
> > >
> > > [RESULT] IOPS phase 5 mdtest_hard_stat 84.140 kiops :
> > > time 10.65 seconds
> > >
> > > [RESULT] IOPS phase 6 mdtest_easy_delete 55.311 kiops :
> > > time 271.19 seconds
> > >
> > > [RESULT] IOPS phase 7 mdtest_hard_read
> > > 21.778 kiops : time 41.16 seconds
> > >
> > > [RESULT] IOPS phase 8 mdtest_hard_delete 7.133
> > > kiops : time 129.24 seconds
> > >
> > > [SCORE] Bandwidth 3.81212 GiB/s : IOPS 24.1149 kiops : TOTAL
> 9.58796
> > >
> > > The io500.sh was run
> > >
> > > Running the C version of the benchmark now
> > >
> > > IO500 version io500-isc20
> > >
> > > <currently running …when I posted this question ….
> > >
> > > ***************************************************
> > >
> > > config-test1.ini (END)
> > >
> > > ***************************************************
> > >
> > > [global]
> > >
> > > datadir = ./out/
> > >
> > > resultdir = ./results/
> > >
> > > timestamp-resultdir = TRUE
> > >
> > > # Chose parameters that are very small for all benchmarks
> > >
> > > [debug]
> > >
> > > stonewall-time = 300 # for testing
> > >
> > > [ior-easy]
> > >
> > > transferSize = 2m
> > >
> > > blockSize = 102400m
> > >
> > > [mdtest-easy]
> > >
> > > API = POSIX
> > >
> > > # Files per proc
> > >
> > > n = 500000
> > >
> > > [ior-hard]
> > >
> > > API = POSIX
> > >
> > > # Number of segments10000000
> > >
> > > segmentCount = 400000
> > >
> > > [mdtest-hard]
> > >
> > > API = POSIX
> > >
> > > # Files per proc 1000000
> > >
> > > n = 40000
> > >
> > > [find]
> > >
> > > external-script = /mnt/beeond/io500-app/bin/pfind
> > >
> > > pfind-parallelize-single-dir-access-using-hashing = FALSE
> > >
> > > ***************************************************
> > >
> > > _______________________________________________
> > > IO-500 mailing list
> > > IO-500(a)vi4io.org
> > > https://urldefense.com/v3/__https://www.vi4io.org/mailman/listinfo/io-500...
> > > <
> https://urldefense.com/v3/__https:/www.vi4io.org/mailman/listinfo/io-500_...
> >
> > >
> > >
> > > _______________________________________________
> > > IO-500 mailing list
> > > IO-500(a)vi4io.org
> > > https://urldefense.com/v3/__https://www.vi4io.org/mailman/listinfo/io-500...
> >
> > _______________________________________________
> > IO-500 mailing list
> > IO-500(a)vi4io.org
> > https://urldefense.com/v3/__https://www.vi4io.org/mailman/listinfo/io-500...
>
>
>
> --
> Dr. Julian Kunkel
> Lecturer, Department of Computer Science
> +44 (0) 118 378 8218
> https://urldefense.com/v3/__http://www.cs.reading.ac.uk/__;!!GqivPVa7Brio...
> https://urldefense.com/v3/__https://hps.vi4io.org/__;!!GqivPVa7Brio!KR_eW...
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>
2 years, 10 months
Proposal of possible postponement of ISC20 IO500 BOF
by committee＠io500.org
Dear IO500 Community,
We have heard your concerns about the late announcement of changes and
have already taken one concrete action and are considering a second but
we want your feedback about it first.
We are considering postponing our BoF, and our deadline, by one month.
Since we are not tied to ISC this year, we have this latitude. Are there
any objections from the community to this postponement?
For our concrete action, we will shift future schedules so that three
months from an event we release a candidate benchmark and the likely
rules set for public testing. Then commit to 6 weeks before the event to
finalize the benchmark and rules. Then things are locked until after the
event.
Please let us know how you feel about the possible postponement and
please do know how deeply we value you all in our community that makes
everything we do possible.
Based on the feedback received, we will make and announce our final
decision by EOD Sunday AOE.
Thanks,
The IO500 Committee
2 years, 10 months
