User and Reference Guide

Contents

INTERNAL-MPI

Syntax
INTERNAL-MPI [on|off]
Variable
VT_INTERNAL_MPI
Default
on
Description
Allows tracing of events inside the MPI implementation. This is enabled by default, but even then it still requires an MPI implementation which actually records events. The Intel Trace Collector documentation describes in more detail how an MPI implementation might do that.

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.