[petsc-users] Trivial parallelizing in SLEPc

[Jose E. Roman]

> El 24/9/2015, a las 8:46, Anders Jellinggaard <anders.jellinggaard at quantumwise.com> escribió:
> 
> Thank you Jose and Hong
> 
> Spectrum slicing is described in Sec. 3.4.5 of the user manual, but is there anywhere I can read about hierarchical parallelism in the CISS solver in SLEPc?
> 
> Anders
> 

[Please reply to the list.]


At some point we will write a technical report describing the method and the user interface, but it is not available yet. You will have to look at the source code. Basically, you can set the number of partitions (or subcommunicators), and if it is equal to the number of MPI processes then the computation associated with any integration point will be done sequentially.
http://slepc.upv.es/documentation/current/docs/manualpages/EPS/EPSCISSSetSizes.html

Jose