On Feb 27, 2016, at 8:22 PM, Boyce Griffith <[email protected]> wrote:

Barry —

I haven’t been following master, and so maybe these have already been addressed, but is there a chance that fixes for the performance issues Amneet found (options in setting up lots of KSPs in small-block ASM,

Thanks for the reminder. I have added a new ./configure option --with-viewfromoptions=0 which will remove all of that overhead and likely perform better than the "hack" I suggested to apply earlier. This is in the branch barry/fixes-for-release-1 and will be in master if it passes all the test. I'll also remind you of the option --with-errorchecking=0 which turns off additional overhead that in theory is not needed in production runs and could help a bit more when using many small solvers. Please let us know if there are any difficulties. Barry

and logging of IS objects) will make it into 3.7?

Thanks,

— Boyce

...

On Feb 27, 2016, at 3:36 PM, Barry Smith <[email protected]> wrote:

PETSc Users,

We are planning the PETSc release 3.7 shortly. If you know of any bugs that need to be fixed or enhancements added before the release please let us know.

You can think of the master branch of the PETSc repository obtainable with

git clone https://bitbucket.org/petsc/petsc petsc

as a release candidate for 3.7. Changes for the release are listed at http://www.mcs.anl.gov/petsc/documentation/changes/dev.html

Thanks

Barry