User and Reference Guide

Contents

ALTSTACK

Syntax
ALTSTACK [on|off]
Variable
VT_ALTSTACK
Description
Handling segfaults due to a stack overflow requires that the signal handler runs on an alternative stack, otherwise it will just segfault again, causing the process to terminate.
Because installing an alternative signal handler affects application behavior, it is normally not done. If it is known to work, it is enabled only for MPI correctness checking.

Product and Performance Information

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