Hi Jacob,
the recommendation in the past was to use MPICH as it is (was?)
valgrind-clean. Which MPI do you use? OpenMPI used to have these kinds
of issues. (My information might be outdated)
Best regards,
Karli
On 6/2/20 2:43 AM, Jacob Faibussowitsch wrote:
Hello All,
TL;DR: valgrind
Jeff dumb. Make copy paste error. Sorry.
Jeff
On Mon, Jun 1, 2020 at 5:02 PM Jeff Hammond wrote:
> I'm still unable to get a basic matrix transpose working. I may be
> stupid, but I cannot figure out why the object is in the wrong state, no
> matter what I do.
>
> This is the full code:
>
>
Hello All,TL;DR: valgrind always complains about "Syscall param write(buf) points to uninitialised byte(s)” for a LOT of MPI operations in petsc code, making debugging using valgrind fairly annoying since I have to sort through a ton of unrelated stuff. I have built valgrind from source, used apt
I'm still unable to get a basic matrix transpose working. I may be stupid,
but I cannot figure out why the object is in the wrong state, no matter
what I do.
This is the full code:
https://github.com/jeffhammond/PRK/commit/617973dfbe07d64cc2c0418a1702c418d51802c5
I would just use MatTranspose here. We've had limited demand for more
sophisticated operations on objects of type MATTRANSPOSE and there
probably isn't much benefit in fusing the parallel version here anyway.
Jeff Hammond writes:
> I am trying to understand how to use a transposed matrix view
I am trying to understand how to use a transposed matrix view along the
lines of Numpy (
https://github.com/ParRes/Kernels/blob/master/PYTHON/transpose-numpy.py#L99
).
https://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/Mat/MatCreateTranspose.html
says
"Creates a new matrix object that
MKL fails on gemms calls too. At least in the past, not sure about the latest
version.
> On Jun 1, 2020, at 10:48 PM, Jeff Hammond wrote:
>
> I assume it's MKL sparse that fails for empty matrices, because the BLAS and
> LAPACK should follow the Netlib convention.
>
> I'm sorry that MKL
I assume it's MKL sparse that fails for empty matrices, because the BLAS
and LAPACK should follow the Netlib convention.
I'm sorry that MKL is unwilling to do nothing for you :-)
Jeff
On Sat, May 30, 2020 at 4:26 PM Mills, Richard Tran via petsc-dev <
petsc-dev@mcs.anl.gov> wrote:
> Thanks for
Thanks everybody for your help. I'll use this in the future, but for now,
building from source with minimal features is working for me.
Jeff
On Sun, May 31, 2020 at 9:06 PM Drew Parsons wrote:
> On 2020-06-01 10:48, Satish Balay wrote:
> > This is likely a dependency of a dependency.
> >
> >
On Sun, 31 May 2020 at 02:26, Mills, Richard Tran via petsc-dev <
petsc-dev@mcs.anl.gov> wrote:
> Thanks for the replies, everyone. It suppose is not actually that hard for
> me to handle these dimensions properly -- I just hadn't personally
> encountered or thought much about when such
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