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Hi, I’d like to propose a patch to the -T/—type handling code in OMB. The -T option currently accepts MPI datatype names by comparing only a fixed-length prefix and then silently ignores unrecognized values. If a user passes an unsupported datatype</div>
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Hi,</div>
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<div style="direction: ltr; font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
I’d like to propose a patch to the -T/—type handling code in OMB.</div>
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<br>
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The -T option currently accepts MPI datatype names by comparing only a</div>
<div style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
fixed-length prefix and then silently ignores unrecognized values. If a</div>
<div style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
user passes an unsupported datatype such as mpi_long_long, no datatype is</div>
<div style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
added to the benchmark option list and later default handling can run a</div>
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different datatype instead. This can make benchmark output misleading.</div>
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<br>
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Use exact case-insensitive matches for the supported datatype names</div>
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and return PO_BAD_USAGE when the -T argument is not recognized. This</div>
<div style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
keeps unsupported datatypes from silently falling back to a default</div>
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benchmark datatype and avoids unintended matches for datatypes such</div>
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as mpi_int64_t->mpi_int.</div>
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<br>
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Thanks,</div>
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Ken</div>
External recipient
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