Re: [Boost-build] Patch to serialize MPI tests

Subject: Re: [Boost-build] Patch to serialize MPI tests
From: Matthias Troyer (troyer_at_[hidden])
Date: 2010-05-14 15:14:15

On 14 May 2010, at 20:04, Belcourt, Kenneth wrote:
> The attached patch serializes the execution of the MPI tests.  I need to serialize the execution of the MPI tests so that when running Boost regression tests in parallel, we avoid overloading our systems.
> 
> [kbelco_at_wsblade001 tools]$ svn diff
> Index: mpi.jam
> ===================================================================
> --- mpi.jam	(revision 61969)
> +++ mpi.jam	(working copy)
> @@ -493,6 +493,9 @@
>     local num_processes = [ property.select <mpi:processes> : $(properties) ] ;
>     num_processes = $(num_processes:G=) ;
> 
> +    # serialize the MPI tests to avoid overloading systems
> +    JAM_SEMAPHORE on $(target) = <s>mpi-run-semaphore ;
> +
>     # We launch MPI processes using the "mpirun" equivalent specified by the user.
>     LAUNCHER on $(target) =
>       [ on $(target) return $(.mpirun) $(.mpirun_flags) $(num_processes) ] ;
> 
> 
> This has been tested on two systems (Darwin and Linux) without any problems. Okay to commit?

As far as I am concerned you can commit this.

Matthias