[petsc-dev] PETSc 3.5.0 compilation on Windows and OpenMP with pthread

[Baros Vladimir]

So it could be that the external packages were using OpenMP because compiled applications from my build require an openmp dll.

With this build I compiled a static version of pthreads-win32 from here:
https://www.sourceware.org/pthreads-win32/

and PETSc compiled with those libs. Also configuration stage passed without problems.

But at the end the tests failed with the unresolved PetscThreadCommCreate_PThread


Vladimir

-----Original Message-----
From: Jed Brown [mailto:jed at jedbrown.org] 
Sent: Thursday, July 03, 2014 15:26
To: Baros Vladimir; petsc-dev at mcs.anl.gov
Cc: Shrirang G. Abhyankar
Subject: Re: [petsc-dev] PETSc 3.5.0 compilation on Windows and OpenMP with pthread

Baros Vladimir <vbaros at hsr.ch> writes:
> previously I successfully built PETSc with Intel compiler (the last 
> successful build was 3.4.4) using OpenMP libraries.
>
> In version 3.5.0, OpenMP package depends on pthread library which 
> doesn't exist on Windows.  Why this new requirement and what do you 
> recommend to use on Windows?

Your old Windows configuration of PETSc was not actually using OpenMP.


The threaded implementations use a "thread communicator" which was activated by the optional package "pthreadclasses".  OpenMP is not used by PETSc without "threadcomm" and we are refactoring the whole thing so please don't use it at this time.