[petsc-dev] Modify 3rd party lib

[Mark Adams]

Also, we have PRNTlevel>=2 in SuperLU_dist. This is causing a lot of
output. It's not clear where that is set (it's a #define)

On Sun, Apr 19, 2020 at 9:28 PM Mark Adams <mfadams at lbl.gov> wrote:

> Sherry, I found the problem.
>
> I added this print statement to dDestroy_LU
>
>     nb = CEILING(nsupers, grid->npcol);
>     for (i = 0; i < nb; ++i)
> if ( Llu->Lrowind_bc_ptr[i] ) {
>
> *  fprintf(stderr,"dDestroy_LU: GPU free Llu->Lnzval_bc_ptr[%d/%d] = %p,
> CPU free Llu->Lrowind_bc_ptr =
> %p\n",i,nb,Llu->Lnzval_bc_ptr[i],Llu->Lrowind_bc_ptr[i]);*
>  SUPERLU_FREE (Llu->Lrowind_bc_ptr[i]);
> #ifdef GPU_ACC
>    checkCuda(cudaFreeHost(Llu->Lnzval_bc_ptr[i]));
> #else
>    SUPERLU_FREE (Llu->Lnzval_bc_ptr[i]);
> #endif
> }
>
> And I see:
>
>    1 SNES Function norm 1.245977692562e-04
>
> *dDestroy_LU: GPU free Llu->Lnzval_bc_ptr[0/134] = 0x4ff9b000, CPU free
> Llu->Lrowind_bc_ptr = 0x4ff9a000*ex112d: cudahook.cc:762: CUresult
> host_free_callback(void*): Assertion `cacheNode != __null' failed.
>
> THis looks like Lnzval_bc_ptr is on the CPU so I removed the GPU_ACC stuff
> and it works now.
>
> I see this in distribution. Perhaps this a serial run bug?
>
> On Sun, Apr 19, 2020 at 5:58 PM Xiaoye S. Li <xsli at lbl.gov> wrote:
>
>> Mark,
>> you should fork a branch of your own to do this.
>>
>> Sherry
>>
>> On Sun, Apr 19, 2020 at 2:54 PM Stefano Zampini <
>> stefano.zampini at gmail.com> wrote:
>>
>>> First, commit your changes to the superlu_dist branch, then rerun
>>> configure with
>>>
>>> —download-superlu_dist-commit=HEAD
>>>
>>>
>>> > On Apr 20, 2020, at 12:50 AM, Mark Adams <mfadams at lbl.gov> wrote:
>>> >
>>> > I would like to modify SuperLU_dist but if I change the source and
>>> configure it says no need to reconfigure, use --force. I use --force and it
>>> seems to clobber my changes. Can I tell configure to use build but not
>>> download SuperLU?
>>>
>>>
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