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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 bymyproc.
- The rightmost position in the eigenvalue cluster needed bymyproc.
- arrayFor each processorp, 0 <p≤nprocs,pmyils[is the index of the first eigenvalue in the eigenvalue cluster to be computed.p-1]pmyils[equals zero ifp-1]pstays idle.
- arrayFor each processorp,pmyius[is the index of the last eigenvalue in the eigenvalue cluster to be computed.p-1]pmyius[equals zero ifp-1]pstays idle.
- First and last collaborator ofmyproc.myproccollaborates with:frstcl, ...,myproc-1,myproc+1, ...,lastclIfmyproc=frstcl, there are no collaborators on the left. Ifmyproc=lastcl, there are no collaborators on the right.Iffrstcl= 0 andlastcl=nprocs-1, thenmyproccollaborates with everybody