No thoughts on that big peak? (Is it even big?!)
Thanks, M
NB:
X axis is num elements per dimension, 2 dimensions
Y axis is reported MB/s average reported
On 31 Jan 2012, at 23:22, michael wrote:
> Rob
> Thanks for that. We've no parallel filesys so HDF5 build serially only
> (ie on top of NFS), so have tried h5perf_serial. Just wanted to check
> whether the attachments made sense, one is on the login node and other
> on a compute node. The data was compiled from running:
>
>
> #!/bin/bash
>
> # script to run series of HDF5 benchmarks
> # requires HDF5 module to be pre-loaded
>
> EXE=h5perf_serial
> RW=-w
> API="-A HDF5"
> ##ITERS="-i1000"
>
> (
> for size in 20 40 60 80 100 200 400 600 800 1000; do
> time ${EXE} ${RW} ${API} -e ${size},${size} -i1000
> done
>
> for size in 1000 1200 1400 1600 1800 2000; do
> time ${EXE} ${RW} ${API} -e ${size},${size} -i500
> done
>
> for size in 1000 2000 3000 4000; do
> time ${EXE} ${RW} ${API} -e ${size},${size} -i100
> done
>
>
>
> ) 2>&1 | tee h5perf_serial_$HOSTNAME.txt
>
>
>
> On 23 Jan 2012, at 16:54, Rob Latham wrote:
>
>> On Wed, Jan 18, 2012 at 12:51:47PM +0000, michael bane wrote:
>>> Is there an established HDF5 benchmark suite eg for measuring file
>>> IO including for parallel file systems?
>>
>> h5perf, included in hdf5, is a good start. Note that the access
>> pattern may not match what an actual application is trying to do.
>> h5perf has a ton of features, though, so you can probably find a
>> configuration that comes close.
>>
>> ==rob
>>
>>
>> --
>> Rob Latham
>> Mathematics and Computer Science Division
>> Argonne National Lab, IL USA
>>
>> _______________________________________________
>> Hdf-forum is for HDF software users discussion.
>> [email protected]
>> http://mail.hdfgroup.org/mailman/listinfo/hdf-forum_hdfgroup.org
>>
>
>
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