• 2019 Update 3
  • 03/07/2019
  • Public Content
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Contents

Syntax
DEADLOCK-WARNING <delay>
Variable
VT_DEADLOCK_WARNING
Default
5 minutes
Description
If on average the MPI processes are stuck in their last MPI call for more than this threshold, then a
GLOBAL:DEADLOCK:NO_PROGRESS
warning is generated. This is a sign of a load imbalance or a deadlock which cannot be detected because at least one process polls for progress instead of blocking inside an MPI call.
As usual, the value may also be specified with units,
1m
for one minute, for example.

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804