[petsc-users] Problem with BLASdot in 3.19.4

Tue Sep 19 10:30:30 CDT 2023

BTW: Can check if you are using threaded MKL?

We default to:

  Libraries:  -L/cygdrive/c/PROGRA~2/Intel/oneAPI/mkl/2022.1.0/lib/intel64 mkl_intel_lp64_dll.lib mkl_sequential_dll.lib mkl_core_dll.lib

If using threaded MKL - try using env variable "OMP_NUM_THREADS=1" and see that makes a difference

Satish

On Tue, 19 Sep 2023, Barry Smith wrote:

> 
>   Can you run in the Microsoft Visual Studio debugger? Use the additional PETSc option -no_signal_handler
> 
> 
>   It won't show exactly where the SEGV happens but might focus in a bit on it. For example it may be ddot() or ddot_().
> 
>   Barry
> 
> 
> 
> > On Sep 19, 2023, at 2:04 AM, Thuc Bui <bui at calcreek.com> wrote:
> > 
> > Hi Barry,
> >  
> > Visual Studio 2022 is the problem! The code linked to Petsc 3.18.6 built with VS 2022 also crashes at the same place. The same errors are shown below. I don’t remember for sure, but I don’t think I was able to configure Petsc 3.19.4 with VS 2019. However, I will still try that next.
> >  
> > Thanks for your help,
> > Thuc
> >  
> > [0]PETSC ERROR: ------------------------------------------------------------------------
> > [0]PETSC ERROR: Caught signal number 11 SEGV: Segmentation Violation, probably memory access out of range
> > [0]PETSC ERROR: Try option -start_in_debugger or -on_error_attach_debugger
> > [0]PETSC ERROR: or see https://petsc.org/release/faq/#valgrind and https://petsc.org/release/faq/
> > [0]PETSC ERROR: ---------------------  Stack Frames ------------------------------------
> > [0]PETSC ERROR: The line numbers in the error traceback are not always exact.
> > [0]PETSC ERROR: #1 BLASdot()
> > [0]PETSC ERROR: #2 VecNorm_Seq() at D:\Users\bbwannabe\Documents\Petsc\petsc-3.18.6\src\vec\vec\impls\seq\bvec2.c:216
> > [0]PETSC ERROR: #3 VecNorm() at D:\Users\bbwannabe\Documents\Petsc\petsc-3.18.6\src\vec\vec\interface\rvector.c:237
> > [0]PETSC ERROR: #4 VecNormalize() at D:\Users\bbwannabe\Documents\Petsc\petsc-3.18.6\src\vec\vec\interface\rvector.c:318
> > [0]PETSC ERROR: #5 KSPGMRESCycle() at D:\Users\bbwannabe\Documents\Petsc\petsc-3.18.6\src\ksp\ksp\impls\gmres\gmres.c:111
> > [0]PETSC ERROR: #6 KSPSolve_GMRES() at D:\Users\bbwannabe\Documents\Petsc\petsc-3.18.6\src\ksp\ksp\impls\gmres\gmres.c:228
> > [0]PETSC ERROR: #7 KSPSolve_Private() at D:\Users\bbwannabe\Documents\Petsc\petsc-3.18.6\src\ksp\ksp\interface\itfunc.c:899
> > [0]PETSC ERROR: #8 KSPSolve() at D:\Users\bbwannabe\Documents\Petsc\petsc-3.18.6\src\ksp\ksp\interface\itfunc.c:1071
> >  
> > job aborted:
> > [ranks] message
> >  
> > [0] application aborted
> > aborting MPI_COMM_WORLD (comm=0x44000000), error 59, comm rank 0
> >  
> >  
> >  
> > From: petsc-users [mailto:petsc-users-bounces at mcs.anl.gov] On Behalf Of Thuc Bui
> > Sent: Monday, September 18, 2023 4:24 PM
> > To: 'Barry Smith'
> > Cc: 'PETSc users list'
> > Subject: Re: [petsc-users] Problem with BLASdot in 3.19.4
> >  
> > Thanks a lot Barry, for getting back to me. Will do what you have suggested, and get back with the results.
> >  
> > Best regards,
> > Thuc
> >  
> > From: Barry Smith [mailto:bsmith at petsc.dev] 
> > Sent: Monday, September 18, 2023 3:43 PM
> > To: Thuc Bui
> > Cc: PETSc users list
> > Subject: Re: [petsc-users] Problem with BLASdot in 3.19.4
> >  
> >  
> >   Ok, two things are being changed at the same time: the version  of PETSc and the version of Visual Studio. 
> >  
> >   Could you please try with the new Visual Studio version but the same older PETSc version? If that works could you try with the old Visual Studio version but the new PETSc version? 
> >  
> >   Barry
> >  
> >  
> >  
> > 
> > On Sep 18, 2023, at 6:26 PM, Thuc Bui <bui at calcreek.com <mailto:bui at calcreek.com>> wrote:
> >  
> > Dear Petsc users and experts,
> >  
> > If someone can direct me how to track this bug, I would really appreciate it.
> >  
> > The Petsc DLL library version 3.19.4 was built on Windows 10 with Visual Studio 2022, and with Microsoft MPI 10.1.2 and Intel MKL 2020.3.279. The same code works fine with Petsc 3.18.6 using the same versions of MS MPI and Intel MKL, and built with Visual Studio 2019.
> >  
> > When my code calls PetscCall(KSPSolve(...)), it gets to PetscCall(KSPGMRESCycle(...)), PetscCall(VecNormalize(VEC_VV(0), &res)), PetscCall(VecNorm(x, NORM_2, &norm)) and then crashes in VecNorm_Seq() at:
> >  
> >                 PetscCallBLAS("BLASdot", ztmp[type == NORM_1_AND_2] = PetscSqrtReal(PetscRealPart(BLASdot_(&bn, xx, &one, xx, &one))));
> >  
> > I tried to step into BLASdot_, but was unable to. I assume BLASdot_ belong to Intel MKL, and its library does not contain debug information. After the code exits, the errors are shown below the hash line.
> >  
> > Should I install the latest Intel MKL to work with Petsc 3.19.4?
> >  
> > Many thanks in advance for your help,
> > Thuc Bui
> > Senior R&D Engineer
> > Calabazas Creek Research, Inc
> > (650) 948-5361
> >  
> >  
> > ###############################################
> >  
> > [0]PETSC ERROR: ------------------------------------------------------------------------
> > [0]PETSC ERROR: Caught signal number 11 SEGV: Segmentation Violation, probably memory access out of range
> > [0]PETSC ERROR: Try option -start_in_debugger or -on_error_attach_debugger
> > [0]PETSC ERROR: or see https://petsc.org/release/faq/#valgrind and https://petsc.org/release/faq/
> > [0]PETSC ERROR: ---------------------  Stack Frames ------------------------------------
> > [0]PETSC ERROR: The line numbers in the error traceback are not always exact.
> > [0]PETSC ERROR: #1 BLASdot()
> > [0]PETSC ERROR: #2 VecNorm_Seq() at D:\Users\bbwannabe\Documents\Petsc\latest\src\vec\vec\impls\seq\bvec2.c:213
> > [0]PETSC ERROR: #3 VecNorm() at D:\Users\bbwannabe\Documents\Petsc\latest\src\vec\vec\interface\rvector.c:237
> > [0]PETSC ERROR: #4 VecNormalize() at D:\Users\bbwannabe\Documents\Petsc\latest\src\vec\vec\interface\rvector.c:318
> > [0]PETSC ERROR: #5 KSPGMRESCycle() at D:\Users\bbwannabe\Documents\Petsc\latest\src\ksp\ksp\impls\gmres\gmres.c:110
> > [0]PETSC ERROR: #6 KSPSolve_GMRES() at D:\Users\bbwannabe\Documents\Petsc\latest\src\ksp\ksp\impls\gmres\gmres.c:227
> > [0]PETSC ERROR: #7 KSPSolve_Private() at D:\Users\bbwannabe\Documents\Petsc\latest\src\ksp\ksp\interface\itfunc.c:898
> > [0]PETSC ERROR: #8 KSPSolve() at D:\Users\bbwannabe\Documents\Petsc\latest\src\ksp\ksp\interface\itfunc.c:1070
> >  
> > job aborted:
> > [ranks] message
> >  
> > [0] application aborted
> > aborting MPI_COMM_WORLD (comm=0x44000000), error 59, comm rank 0
> 
> 