VisitDataWriter doesnt support multiple procs per file

[mikeraf]

Hello,
contrary to the documentation in

SAMRAI/source/SAMRAI/appu/VisItDataWriter.h

Line 94 in 621f648

* files. An optional argument number_procs_per_file, applicable

, and

SAMRAI/source/SAMRAI/appu/VisItDataWriter.h

Line 201 in 621f648

* @pre number_procs_per_file > 0

, there is an assertion in

SAMRAI/source/SAMRAI/appu/VisItDataWriter.C

Line 121 in 621f648

TBOX_ASSERT(number_procs_per_file == 1);

that prevents the use of multiple procs per file.

This is quite a problem in simulations with a lot of procs as it may exhaust INodes on the storage.
Is it intentional or just a typo?

Thanks

[nselliott]

I'm sorry, VisItDataWriter really doesn't support multiple procs per file. We will clarify this in the documentation.

[mikeraf]

There is a pull request that solves this issue and enables the functionality:
mikeraf/pull/1