ius Buerkle" , "Patrick Sanan" <
>> patrick.sa...@gmail.com>
>> >> Cc: "PETSc users list" , petsc-dev <
>> petsc-dev@mcs.anl.gov>
>> >> Betreff: Re: Aw: Re: [petsc-dev] [petsc-users]
>> MatPreallocatorPreallocate segfault with
Thanks for the feedback.
> >
> >> Gesendet: Donnerstag, den 03.02.2022 um 03:09 Uhr
> >> Von: "Jed Brown"
> >> An: "Marius Buerkle" , "Patrick Sanan" <
> patrick.sa...@gmail.com>
> >> Cc: "PETSc users list"
n: "Marius Buerkle" , "Patrick Sanan"
>>
>> Cc: "PETSc users list" , petsc-dev
>>
>> Betreff: Re: Aw: Re: [petsc-dev] [petsc-users] MatPreallocatorPreallocate
>> segfault with PETSC 3.16
>>
>> Marius Buerkle writes:
>&g
03:09 Uhr
> Von: "Jed Brown"
> An: "Marius Buerkle" , "Patrick Sanan"
>
> Cc: "PETSc users list" , petsc-dev
>
> Betreff: Re: Aw: Re: [petsc-dev] [petsc-users] MatPreallocatorPreallocate
> segfault with PETSC 3.16
>
> Mari
t; , petsc-dev
> Betreff: Re: [petsc-dev] [petsc-users] MatPreallocatorPreallocate segfault
> with PETSC 3.16
>
> That works, as in the attached example - Marius, would that work for your
> case?
>
> Am Di., 1. Feb. 2022 um 16:33 Uhr schrieb Jed Brown :
>
> > Patrick Sanan writes:
Marius Buerkle writes:
> Thanks for they reply. Yes the example works, this is how I was doing it
> before. But the matrix is rather big and i need a matrix with the same
> structure at various points in my code. So it was convenient to create the
> matrix with preallocate, destroy it after us
There is also the hedge of adding a parameter and API function to control
which of these two behaviors is used, and if trying to preallocate twice,
throwing an error that instructs the user how to change the behavior,
noting that it will increase peak memory usage.
Am Di., 1. Feb. 2022 um 17:07 Uh
Stefano Zampini writes:
> Il giorno mar 1 feb 2022 alle ore 18:34 Jed Brown ha
> scritto:
>
>> Patrick Sanan writes:
>>
>> > Am Di., 1. Feb. 2022 um 16:20 Uhr schrieb Jed Brown :
>> >
>> >> Patrick Sanan writes:
>> >>
>> >> > Sorry about the delay on this. I can reproduce.
>> >> >
>> >> > This
Il giorno mar 1 feb 2022 alle ore 18:34 Jed Brown ha
scritto:
> Patrick Sanan writes:
>
> > Am Di., 1. Feb. 2022 um 16:20 Uhr schrieb Jed Brown :
> >
> >> Patrick Sanan writes:
> >>
> >> > Sorry about the delay on this. I can reproduce.
> >> >
> >> > This regression appears to be a result of th
That works, as in the attached example - Marius, would that work for your
case?
Am Di., 1. Feb. 2022 um 16:33 Uhr schrieb Jed Brown :
> Patrick Sanan writes:
>
> > Am Di., 1. Feb. 2022 um 16:20 Uhr schrieb Jed Brown :
> >
> >> Patrick Sanan writes:
> >>
> >> > Sorry about the delay on this. I c
Patrick Sanan writes:
> Am Di., 1. Feb. 2022 um 16:20 Uhr schrieb Jed Brown :
>
>> Patrick Sanan writes:
>>
>> > Sorry about the delay on this. I can reproduce.
>> >
>> > This regression appears to be a result of this optimization:
>> > https://gitlab.com/petsc/petsc/-/merge_requests/4273
>>
>>
Am Di., 1. Feb. 2022 um 16:20 Uhr schrieb Jed Brown :
> Patrick Sanan writes:
>
> > Sorry about the delay on this. I can reproduce.
> >
> > This regression appears to be a result of this optimization:
> > https://gitlab.com/petsc/petsc/-/merge_requests/4273
>
> Thanks for tracking this down. Is t
Patrick Sanan writes:
> Sorry about the delay on this. I can reproduce.
>
> This regression appears to be a result of this optimization:
> https://gitlab.com/petsc/petsc/-/merge_requests/4273
Thanks for tracking this down. Is there a reason to prefer preallocating twice
ierr = MatPreallocato
Sorry about the delay on this. I can reproduce.
This regression appears to be a result of this optimization:
https://gitlab.com/petsc/petsc/-/merge_requests/4273
The changes there including having MatPreallocator destroy its internal
hash structure within MatPreallocatorPreallocate(), which allow
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