<div dir="auto"><div>Aha,</div><div dir="auto"><br></div><div dir="auto">See inline.<br><div dir="auto"><br></div><div dir="auto"><br></div><br><br><div class="gmail_quote" dir="auto"><div dir="ltr" class="gmail_attr">On Thu, Apr 28, 2022, 23:20 Snyder, Shane <<a href="mailto:ssnyder@mcs.anl.gov">ssnyder@mcs.anl.gov</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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Hi Jiri,</div>
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HDF5 should be generally supported for any version greater than 1.8.<br>
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The Darshan error you're seeing indicates that Darshan believes it was configured with a version less than 1.10 (which it then complains about since it sees version 1.12 at runtime). You should see a line like this in the configure output for darshan-runtime:<br>
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HDF5 module support - no<br>
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In my case above, HDF5 support wasn't enabled, but if HDF5 is enabled it will indicate what version it found at configure time. We should make sure that says 1.12 as a starting point. </div></div></blockquote></div></div><div dir="auto"><br></div><div dir="auto">I believe this was indeed the 1.12, for sure it says HDF5 module support yes and if I screwed the hdf5 path up it would fail on but finding "hdf5.h" header. So I'm fairly confident it actually links against this given path correctly as well.</div><div dir="auto"><br></div><div dir="auto"><div class="gmail_quote" dir="auto"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">Darshan is indirectly determining the version by running 'h5dump --version',
so might be good to sanity check that 'h5dump' in PATH is associated with the 1.12 HDF5 install you are trying to use.</div></div></blockquote></div></div><div dir="auto"><br></div><div dir="auto">This is the issue. You're right I'm building my own HDF5 and h5py and the system preinstalled hdf5 is different. How can I tell that to darshan? It's a little inconsistent behavior as I'm specifying my custom hdf5 path to the darshan-runtime ./configure via the --with-hdf5= and would be expecting it checked the version there.</div><div dir="auto"><br></div><div dir="auto">Btw I have quite good understanding how the h5py and hdf5 building works now as that was a lengthy process to get it working properly indeed :). So if you need to know more about the process I should be able to clarify.</div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto"><div class="gmail_quote" dir="auto"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">
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I should note that in my experience, getting h5py working right with Darshan was a challenge. I tried once and had some issues, but one of our Python contributors indicated they have gotten it to work in the past -- in their case, they recommended building
h5py from source according to these directions: <a href="https://docs.h5py.org/en/stable/build.html#custom-installation" id="m_-771805194109594585LPNoLPOWALinkPreview" target="_blank" rel="noreferrer">
https://docs.h5py.org/en/stable/build.html#custom-installation</a><br>
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Maybe you are already doing that? The trick is to use an external HDF5 install (i.e., not one packaged with h5py python wheels) that you then use to build both h5py and Darshan. I could try to get further myself if we can't figure out how to get it working
for you.<br>
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Thanks,</div>
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--Shane<br>
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<div id="m_-771805194109594585divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Darshan-users <<a href="mailto:darshan-users-bounces@lists.mcs.anl.gov" target="_blank" rel="noreferrer">darshan-users-bounces@lists.mcs.anl.gov</a>> on behalf of Jiří Nádvorník <<a href="mailto:nadvornik.ji@gmail.com" target="_blank" rel="noreferrer">nadvornik.ji@gmail.com</a>><br>
<b>Sent:</b> Wednesday, April 27, 2022 12:29 PM<br>
<b>To:</b> <a href="mailto:darshan-users@lists.mcs.anl.gov" target="_blank" rel="noreferrer">darshan-users@lists.mcs.anl.gov</a> <<a href="mailto:darshan-users@lists.mcs.anl.gov" target="_blank" rel="noreferrer">darshan-users@lists.mcs.anl.gov</a>><br>
<b>Subject:</b> [Darshan-users] HDF5 version support</font>
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<div dir="ltr">Hi all,
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<div>I was able to successfully run the darshan runtime without any warnings withou HDF5.</div>
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<div>Now when I compile with HDF5 (the results above are without it):</div>
<div>./configure --with-log-path=/gpfs/raid/darshan-logs --with-jobid-env=PBS_JOBID CC=mpicc --enable-hdf5-mod --with-hdf5=/gpfs/raid/SDSSCube/ext_lib//hdf5-1.12.0/hdf5/<br>
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<div>It messes up my runtime and causes python to crash:</div>
<div>mpirun -x DARSHAN_CONFIG_PATH=/gpfs/raid/SDSSCube/darshan.conf -x LD_PRELOAD=/gpfs/raid/shared_libs/darshan/darshan-runtime/lib/.libs/libdarshan.so:/gpfs/raid/SDSSCube/ext_lib/hdf5-1.12.0/hdf5/lib/libhdf5.so -np 65 --hostfile hosts --map-by node /gpfs/raid/SDSSCube/venv_par/bin/python
hisscube.py --truncate ../sdss_data/ results/SDSS_cube_c_par.h5<br>
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<div>Resulting in:</div>
<div>INFO:rank[0]:Rank 0 pid: 137058<br>
Darshan HDF5 module error: runtime library version (1.12) incompatible with Darshan module (1.10-).<br>
Traceback (most recent call last):<br>
File "hisscube.py", line 74, in <module><br>
writer.ingest(fits_image_path, fits_spectra_path, truncate_file=args.truncate)<br>
File "/gpfs/raid/SDSSCube/hisscube/ParallelWriterMWMR.py", line 45, in ingest<br>
self.process_metadata(image_path, image_pattern, spectra_path, spectra_pattern, truncate_file)<br>
File "/gpfs/raid/SDSSCube/hisscube/CWriter.py", line 150, in process_metadata<br>
h5_file = self.open_h5_file_serial(truncate_file)<br>
File "/gpfs/raid/SDSSCube/hisscube/CWriter.py", line 170, in open_h5_file_serial<br>
return h5py.File(self.h5_path, 'w', fs_strategy="page", fs_page_size=4096, libver="latest")<br>
File "/gpfs/raid/SDSSCube/venv_par/lib/python3.8/site-packages/h5py-3.6.0-py3.8-linux-x86_64.egg/h5py/_hl/files.py", line 533, in __init__<br>
fid = make_fid(name, mode, userblock_size, fapl, fcpl, swmr=swmr)<br>
File "/gpfs/raid/SDSSCube/venv_par/lib/python3.8/site-packages/h5py-3.6.0-py3.8-linux-x86_64.egg/h5py/_hl/files.py", line 232, in make_fid<br>
fid = h5f.create(name, h5f.ACC_TRUNC, fapl=fapl, fcpl=fcpl)<br>
File "h5py/_objects.pyx", line 54, in h5py._objects.with_phil.wrapper<br>
File "h5py/_objects.pyx", line 55, in h5py._objects.with_phil.wrapper<br>
File "h5py/h5f.pyx", line 126, in h5py.h5f.create<br>
File "h5py/defs.pyx", line 693, in h5py.defs.H5Fcreate<br>
RuntimeError: Unspecified error in H5Fcreate (return value <0)<br>
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<div>You are saying that darshan should be compatible with HDF5 > 1.8, which 1.12 should be, right? I checked the source and there is hardcoded if minor version > 10: not supported.</div>
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<div>Thanks for explaining what's supported.</div>
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<div>Cheers,</div>
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<div>Jiri Nadvornik</div>
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