On Jan 15, 2014, at 4:44 PM, Matthew Knepley wrote:
> On Wed, Jan 15, 2014 at 4:36 PM, Barry Smith wrote:
>
>This problem comes up for MPIAIJ matrices when the “off-diagona” matrix is
> compressed to only the columns that have non zeros in them. When a
> MatDuplicate() is done on this i
On Wed, Jan 15, 2014 at 4:36 PM, Barry Smith wrote:
>
>This problem comes up for MPIAIJ matrices when the “off-diagona” matrix
> is compressed to only the columns that have non zeros in them. When a
> MatDuplicate() is done on this it detects the inconsistency that the number
> of local colu
This problem comes up for MPIAIJ matrices when the “off-diagona” matrix is
compressed to only the columns that have non zeros in them. When a
MatDuplicate() is done on this it detects the inconsistency that the number of
local columns may no longer be divisible by the block size. We could h
On Jan 15, 2014, at 11:20 AM, Matthew Knepley wrote:
> This is a bug in the setup phase for Mat. I did not put in the logic, so I
> might be missing the point. Here is
> my outline:
>
> 1) When MatSetPreallocation_*() is called, we set the
> NEW_NONZERO_ALLOCATION_ERR option, but ONLY
>
Hi Aron,
> Stupid GMail. Link:
http://sylvestre.ledru.info/blog/2013/09/08/include-what-you-use-yet
Cool, thanks for the link!
Best regards,
Karli
This on your radar?
Stupid GMail. Link:
http://sylvestre.ledru.info/blog/2013/09/08/include-what-you-use-yet
A
On Wed, Jan 15, 2014 at 1:14 PM, Aron Ahmadia wrote:
> This on your radar?
>
This is a bug in the setup phase for Mat. I did not put in the logic, so I
might be missing the point. Here is
my outline:
1) When MatSetPreallocation_*() is called, we set the
NEW_NONZERO_ALLOCATION_ERR option, but ONLY
if the user passed a nonzero nz or nnz.
2) During assembly, we ch
Hi Pierre,
> I tried to rebuild the optimized PETSc library by changing several
options and ran:
mpirun -np 2 ./ex19 -cuda_show_devices -dm_mat_type aijcusp -dm_vec_type
cusp
-ksp_type fgmres -ksp_view -log_summary -pc_type none
-snes_monitor_short -snes_rtol 1.e-5
Options used:
--with-pthread
On Wed, Jan 15, 2014 at 7:16 AM, Michael Lange wrote:
> Hi,
>
> I am trying to implement a computation-communication overlap with DMPlex,
> where local values that do not need to be sent are updated while the DM/SF
> is broadcasting the ghost values (DMGlobalToLocal() or PetscSFBcast(), I've
> tr
Hi,
I am trying to implement a computation-communication overlap with
DMPlex, where local values that do not need to be sent are updated while
the DM/SF is broadcasting the ghost values (DMGlobalToLocal() or
PetscSFBcast(), I've tried both). The problem is that this only works if
I force the
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