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are there any limits on file size, variable size with pnetcdf 1.12 , NC_64BIT_DATA / CDF-5 ? #162

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iulian787 opened this issue Jan 8, 2025 · 2 comments

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@iulian787
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I have an example in which a file has several large variable ( size > 2B ), but it is crashing in
ncmpi_enddef(), while filling variables with fill value

I have access to a system with 192Gb on a node, I think the whole file could fit in memory

Are there some limits I do not know about?
I will try to reproduce on a smaller program, and I will post the code here.

@wkliao
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wkliao commented Jan 8, 2025

CDF-5 does support large variables.
A short reproducer will be helpful.

Please let me know the versions of PnetCDF and MPI you are using.
These information can be found in file 'config.log'.

@wkliao
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wkliao commented Jan 8, 2025

The error messages from the crash are also helpful.

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