I was trying out different parallel lu solvers for BDDC coarse problem on BG/Q. I'm not so interested particularly in Spooles.
2012/9/9 Jed Brown <five9a2 at gmail.com> > We can apply this patch, but do you really find Spooles useful? It has not > been maintained in a long time. > On Sep 9, 2012 8:46 AM, "Stefano Zampini" <stefano.zampini at gmail.com> > wrote: > >> Hi all, >> >> on BG/Q, I cannot use the current version of spooles when configuring >> petsc with download-spooles=1. >> Namely, I get runtime errors related on MPI buffers aliasing in >> MPI_Allgather calls. >> Aliasing is prohibited by the MPI standard as in Fortran standards. >> >> Attached please find some modified spooles' files which work on BG/Q. >> I only changed the files that use MPI_Allgather. I don't know if there >> are other aliasings inside the code. >> I tested them and now it works. No more runtime errors. >> >> Could you patch the PETSc version of spooles with these new files? >> >> -- >> Stefano >> > -- Stefano -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-dev/attachments/20120909/7cd225b8/attachment.html>
