User and Reference Guide

Contents

Data Modified during Transmission

(GLOBAL:*:DATA_TRANSMISSION_CORRUPTED)
After checking that the data type signatures in a point-to-point message transfer or collective data gather/scatter operation at sender and receiver match, Intel ®Trace Collector also verifies that the data was transferred correctly by comparing additional checksums that are calculated inside the sending and receiving process. This adds another end-to-end data integrity check which will fail if any of the components involved in the data transmission malfunctioned (MPI layer, device drivers, hardware).
In cases where this
GLOBAL:*:DATA_TRANSMISSION_CORRUPTED
error is obviously the result of some other error, it is not reported separately. This currently works for truncated message receives and data type mismatches.

Product and Performance Information

1

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