[petsc-dev] MatNest and MatCreateHermitianTranspose
Pierre Jolivet
pierre.jolivet at enseeiht.fr
Sat Oct 20 07:51:32 CDT 2018
Hello Stefano,
> On 20 Oct 2018, at 9:22 AM, Stefano Zampini <stefano.zampini at gmail.com> wrote:
>
> Pierre,
>
> Thanks to report this. I think this should be fixed in MatHermitianTransposeAdd. Would you like to open a PR?
Done.
Thanks,
Pierre
> Thanks
> Stefani
>
> Il Sab 20 Ott 2018, 08:16 Pierre Jolivet <pierre.jolivet at enseeiht.fr <mailto:pierre.jolivet at enseeiht.fr>> ha scritto:
> Hello,
> I’m using a MatNest with some blocks made of matrices created with MatCreateHermitianTranspose. I end up with the following trace when doing a simple MatMult.
> Should this be fixed in matnest.c, matrix.c or htransm.c?
>
> Thanks,
> Pierre
>
> (lldb) down
> frame #11: 0x000000011ad06830 libpetsc.3.010.dylib`MatMult_Nest(A=0x00007fcc2eb50260, x=0x00007fcc2f019460, y=0x00007fcc2f01ca60) at matnest.c:52
> 49 for (j=0; j<nc; j++) {
> 50 if (!bA->m[i][j]) continue;
> 51 /* y[i] <- y[i] + A[i][j] * x[j] */
> -> 52 ierr = MatMultAdd(bA->m[i][j],bx[j],by[i],by[i]);CHKERRQ(ierr);
> 53 }
> 54 }
> 55 for (i=0; i<nr; i++) {ierr = VecRestoreSubVector(y,bA->isglobal.row[i],&by[i]);CHKERRQ(ierr);}
> (lldb)
> frame #10: 0x000000011a9d6399 libpetsc.3.010.dylib`MatMultAdd(mat=0x00007fcc2ebfde60, v1=0x00007fcc2f029c60, v2=0x00007fcc2f024660, v3=0x00007fcc2f024660) at matrix.c:2517
> 2514 if (!mat->ops->multadd) SETERRQ1(PetscObjectComm((PetscObject)mat),PETSC_ERR_SUP,"No MatMultAdd() for matrix type '%s'",((PetscObject)mat)->type_name);
> 2515 ierr = PetscLogEventBegin(MAT_MultAdd,mat,v1,v2,v3);CHKERRQ(ierr);
> 2516 ierr = VecLockPush(v1);CHKERRQ(ierr);
> -> 2517 ierr = (*mat->ops->multadd)(mat,v1,v2,v3);CHKERRQ(ierr);
> 2518 ierr = VecLockPop(v1);CHKERRQ(ierr);
> 2519 ierr = PetscLogEventEnd(MAT_MultAdd,mat,v1,v2,v3);CHKERRQ(ierr);
> 2520 ierr = PetscObjectStateIncrease((PetscObject)v3);CHKERRQ(ierr);
> (lldb)
> frame #9: 0x000000011ad136d0 libpetsc.3.010.dylib`MatMultAdd_HT(N=0x00007fcc2ebfde60, v1=0x00007fcc2f029c60, v2=0x00007fcc2f024660, v3=0x00007fcc2f024660) at htransm.c:24
> 21 PetscErrorCode ierr;
> 22
> 23 PetscFunctionBegin;
> -> 24 ierr = MatMultHermitianTransposeAdd(Na->A,v1,v2,v3);CHKERRQ(ierr);
> 25 PetscFunctionReturn(0);
> 26 }
> 27
> (lldb)
> frame #8: 0x000000011a9d88e5 libpetsc.3.010.dylib`MatMultHermitianTransposeAdd(mat=0x00007fcc2e977260, v1=0x00007fcc2f029c60, v2=0x00007fcc2f024660, v3=0x00007fcc2f024660) at matrix.c:2629
> 2626 ierr = MatMultTranspose(mat,w,z);CHKERRQ(ierr);
> 2627 ierr = VecDestroy(&w);CHKERRQ(ierr);
> 2628 ierr = VecConjugate(z);CHKERRQ(ierr);
> -> 2629 ierr = VecWAXPY(v3,1.0,v2,z);CHKERRQ(ierr);
> 2630 ierr = VecDestroy(&z);CHKERRQ(ierr);
> 2631 }
> 2632 ierr = VecLockPop(v1);CHKERRQ(ierr);
> (lldb)
> frame #7: 0x000000011a8f33b5 libpetsc.3.010.dylib`VecWAXPY(w=0x00007fcc2f024660, alpha=1, x=0x00007fcc2f024660, y=0x00007fcc2f039260) at rvector.c:795
> 792 VecCheckSameSize(x,3,y,4);
> 793 VecCheckSameSize(x,3,w,1);
> 794 if (w == y) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"Result vector w cannot be same as input vector y, suggest VecAXPY()");
> -> 795 if (w == x) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"Result vector w cannot be same as input vector x, suggest VecAYPX()");
> 796 PetscValidLogicalCollectiveScalar(y,alpha,2);
> 797
> 798 ierr = PetscLogEventBegin(VEC_WAXPY,x,y,w,0);CHKERRQ(ierr);
>
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