Intel® oneAPI Math Kernel Library Developer Reference - C
Finds the collaborators of a process.
void pmpcol(MKL_INT* myproc, MKL_INT* nprocs, MKL_INT* iil, MKL_INT* needil, MKL_INT* neediu, MKL_INT* pmyils, MKL_INT* pmyius, MKL_INT* colbrt, MKL_INT* frstcl, MKL_INT* lastcl);
Using the output from pmpim2 and given the information on eigenvalue clusters, pmpcol finds the collaborators of myproc.
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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 |
The processor number, 0 ≤myproc < nprocs.
The total number of processors available.
The index of the leftmost eigenvalue in the eigenvalue cluster.
The leftmost position in the eigenvalue cluster needed by myproc.
The rightmost position in the eigenvalue cluster needed by myproc.
array
For each processor p, 0 < p≤nprocs, pmyils[p-1] is the index of the first eigenvalue in the eigenvalue cluster to be computed.
pmyils[p-1] equals zero if p stays idle.
array
For each processor p, pmyius[p-1] is the index of the last eigenvalue in the eigenvalue cluster to be computed.
pmyius[p-1] equals zero if p stays idle.
Non-zero if myproc collaborates.
First and last collaborator of myproc .
myproc collaborates with:
frstcl, ..., myproc-1, myproc+1, ...,lastcl
If myproc = frstcl, there are no collaborators on the left. If myproc = lastcl, there are no collaborators on the right.
If frstcl = 0 and lastcl = nprocs-1, then myproc collaborates with everybody