Classic produces NaNs on Shaheen about pyclaw HOT 4 CLOSED

(from Manuel's email)

This is a summary of the problem, we are running certain code with the 64 bit configuration in Shaheen, and we get just nan's. This was happening to me in David's workstation. Yesterday, I reinstalled petsc and petsc4py in the workstation and it is now working there. I used petsc 3.1 p-8 with 64 bits.

Considering the same code, I have just tried building and running it in Shaheen using the old 32 bit configuration and it does work. I don't know if the problem is in PETSc or petsc4py, but I do think there is a problem in the 64 bit configuration in Shaheen.

I made a copy of the code we are using in /project/k47/stegoton-2d-paper/psystem. If you run it, you can see the problem by doing cat _output/F.txt

Seems to be an issue with petsc4py, so we are attempting to rebuild it

from pyclaw.

We had noticed the error on this version of petsc4py:
changeset: 754:45cdfffcfd68

It seems to not be present at this version (@ketch or Manuel is confirming):
changeset: 764:c47ec9f75a93

from pyclaw.

Updating the version of petsc4py on Shaheen works. I've updated the script on Shaheen to automatically source the updated petsc4py.

from pyclaw.

Nice! Thanks for getting to this so fast.

On Sat, Jun 25, 2011 at 9:51 PM, ahmadia <
[email protected]>wrote:

Updating the version of petsc4py on Shaheen works. I've updated the script
on Shaheen to automatically source the updated petsc4py.

Reply to this email directly or view it on GitHub:
#44 (comment)

from pyclaw.