] About PC hpddm
Try:
spack install slepc+hpddm ^petsc+hpddm
Satish
On Thu, 9 May 2024, Ng, Cho-Kuen via petsc-users wrote:
> Pierre,
>
> petec and slepc libraries are found in the spack directory, but
> libhpddm_petsc is not. So it is not built during the spack ins
From: Pierre Jolivet
Sent: Wednesday, May 8, 2024 11:01 PM
To: Ng, Cho-Kuen
Cc: petsc-users@mcs.anl.gov
Subject: Re: [petsc-users] About PC hpddm
On 9 May 2024, at 6:31 AM, Ng, Cho-Kuen via petsc-users
wrote:
This Message Is From an External Sender
This message came from
I used spack to install petsc with hpddm as follows.
o spack install petsc+hpddm
o spack install slepc ^petsc+hpddm
I got the following runtime error of finding the library hpddm_petsc.
argv0 -ksp_converged_reason -ksp_view_final_residual -ksp_type gmres -pc_type
hpddm -ksp_monitor -log_view
- frequency Helmholtz is very hard, low-frequency is doable
by using a larger coarse grid (you have a tiny coarse grid).
On Sat, Apr 13, 2024 at 3:04 PM Matthew Knepley
mailto:knep...@gmail.com>> wrote:
On Fri, Apr 12, 2024 at 8:19 PM Ng, Cho-Kuen via petsc-users
mailto:petsc-users@mcs.anl.gov&g
;
Subject: Re: [petsc-users] Using PETSc GPU backend
> Can petsc show the number of GPUs used?
-device_view
Best regards,
Jacob Faibussowitsch
(Jacob Fai - booss - oh - vitch)
> On Aug 12, 2023, at 00:53, Ng, Cho-Kuen via petsc-users
> mailto:petsc-users@mcs.anl.gov>> wrote:
>
est regards,
Jacob Faibussowitsch
(Jacob Fai - booss - oh - vitch)
> On Aug 12, 2023, at 00:53, Ng, Cho-Kuen via petsc-users
> wrote:
>
> Barry,
>
> I tried again today on Perlmutter and running on multiple GPU nodes worked.
> Likely, I had messed up something the oth
cob Faibussowitsch
(Jacob Fai - booss - oh - vitch)
> On Aug 12, 2023, at 00:53, Ng, Cho-Kuen via petsc-users
> wrote:
>
> Barry,
>
> I tried again today on Perlmutter and running on multiple GPU nodes worked.
> Likely, I had messed up something the other day. Also, I was able
use -options_left the program will
tell you at the end that it did not use the option so you will know.
On Jun 30, 2023, at 9:30 AM, Mark Adams
mailto:mfad...@lbl.gov>> wrote:
PetscCall(PetscInitialize(, , NULL, help)); gives us the args and you
run:
a.out -mat_type aijcusparse
t 9:30 AM, Mark Adams
mailto:mfad...@lbl.gov>> wrote:
PetscCall(PetscInitialize(, , NULL, help)); gives us the args and you
run:
a.out -mat_type aijcusparse -vec_type cuda -log_view -options_left
Mark
On Fri, Jun 30, 2023 at 6:16 AM Matthew Knepley
mailto:knep...@gmail.com>> wrote:
ell you at the end that it did not use the option so you will know.
On Jun 30, 2023, at 9:30 AM, Mark Adams
mailto:mfad...@lbl.gov>> wrote:
PetscCall(PetscInitialize(, , NULL, help)); gives us the args and you
run:
a.out -mat_type aijcusparse -vec_type cuda -log_view -options_left
Mar
nd you
run:
a.out -mat_type aijcusparse -vec_type cuda -log_view -options_left
Mark
On Fri, Jun 30, 2023 at 6:16 AM Matthew Knepley
mailto:knep...@gmail.com>> wrote:
On Fri, Jun 30, 2023 at 1:13 AM Ng, Cho-Kuen via petsc-users
mailto:petsc-users@mcs.anl.gov>> wrote:
Mark,
The app
Mark
On Fri, Jun 30, 2023 at 6:16 AM Matthew Knepley
mailto:knep...@gmail.com>> wrote:
On Fri, Jun 30, 2023 at 1:13 AM Ng, Cho-Kuen via petsc-users
mailto:petsc-users@mcs.anl.gov>> wrote:
Mark,
The application code reads in parameters from an input file, where we can put
the PETSc run
Paul,
Thank you for your suggestion. I will try different spack install
specifications.
Cho
From: Grosse-Bley, Paul Leonard
Sent: Friday, June 30, 2023 4:07 AM
To: Ng, Cho-Kuen
Cc: petsc-users@mcs.anl.gov
Subject: Re: [petsc-users] Using PETSc GPU backend
Hi
-log_view -options_left
Mark
On Fri, Jun 30, 2023 at 6:16 AM Matthew Knepley
mailto:knep...@gmail.com>> wrote:
On Fri, Jun 30, 2023 at 1:13 AM Ng, Cho-Kuen via petsc-users
mailto:petsc-users@mcs.anl.gov>> wrote:
Mark,
The application code reads in parameters from an input file, wher
of the performance data (from -log_view) will be the percent
flops on the GPU. Check that that is > 0.
The end of the output will list the options that were used and options that
were _not_ used (if any). Check that there are no options left.
Mark
On Thu, Jun 29, 2023 at 7:50 PM Ng, Cho-Kuen via petsc-us
that that is > 0.
The end of the output will list the options that were used and options that
were _not_ used (if any). Check that there are no options left.
Mark
On Thu, Jun 29, 2023 at 7:50 PM Ng, Cho-Kuen via petsc-users
mailto:petsc-users@mcs.anl.gov>> wrote:
I installed PETSc on Perlmut
I installed PETSc on Perlmutter using "spack install petsc+cuda+zoltan" and
used it by "spack load petsc/fwge6pf". Then I compiled the application code
(purely CPU code) linking to the petsc package, hoping that I can get
performance improvement using the petsc GPU backend. However, the timing
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