On the per-operation row this column lists the name of the selected operation (
Mixedif different operation types were merged). On per-process rows it shows the name of the Process/Group.
Last Time minus First Time
First time, one of the merged operations was entered.
Last time, one of the merged operations was left.
Number of bytes sent. It is the sum of all bytes sent on all merged operations for the per-process rows. The per-operation row sums up all per-process rows.
Number of bytes received. It is the sum of all bytes received on all merged operations for the per-process rows. The per-operation row sums up all per-process rows.
Number of collective operations that are merged into the selection.
The root process.
The name of the MPI communicator on which the collective operation(s) was (were) executed.
The plain ID of the MPI communicator on which the collective operation(s) was (were) executed.
Product and Performance Information
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