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PyDarshan mod_records fails on LUSTRE records #831

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jesse-r-s-hines opened this issue Oct 13, 2022 · 0 comments · May be fixed by #832
Open

PyDarshan mod_records fails on LUSTRE records #831

jesse-r-s-hines opened this issue Oct 13, 2022 · 0 comments · May be fixed by #832
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bug Something isn't working pydarshan

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@jesse-r-s-hines
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jesse-r-s-hines commented Oct 13, 2022 •
edited
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DarshanReport.mod_records throws when loading a LUSTRE module

r = darshan.DarshanReport('sample.darshan')
next(r.mod_records('LUSTRE'))

throws:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python3.9/dist-packages/darshan-3.4.0.1-py3.9.egg/darshan/report.py", line 974, in mod_records
    rec = backend.log_get_generic_record(self.log, mod, dtype=dtype)
  File "/usr/local/lib/python3.9/dist-packages/darshan-3.4.0.1-py3.9.egg/darshan/backend/cffi_backend.py", line 354, in log_get_generic_record
    flst = np.copy(np.frombuffer(ffi.buffer(rbuf[0].fcounters), dtype=np.float64))
AttributeError: cdata 'struct darshan_lustre_record *' has no field 'fcounters'

Using backend.log_get_record works, so perhaps just switching DarshanReport.mod_records to use log_get_record instead of log_get_generic_record to make it work for all module types?

I'm running PyDarshan 3.4.0.1. I've attached a sample darshan file that shows the issue.
@tylerjereddy tylerjereddy added bug Something isn't working pydarshan labels Oct 14, 2022
tylerjereddy added a commit to tylerjereddy/darshan that referenced this issue Oct 17, 2022
@tylerjereddy
BUG: LUSTRE fcounters guard
2b848c8 
Fixes darshan-hpc#831

* prevent `log_get_generic_record()` from attempting
to access the `LUSTRE` `fcounters` field, which
apparently does not exist
@tylerjereddy tylerjereddy linked a pull request Oct 17, 2022 that will close this issue
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BUG: LUSTRE fcounters guard tylerjereddy/darshan
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