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

Subject: Re: [Boost-build] Patch to serialize MPI tests
From: Jeremiah Willcock (jewillco_at_[hidden])
Date: 2010-05-29 22:47:32

On Fri, 14 May 2010, Matthias Troyer wrote:

>
> 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.

Does this patch also serialize the Boost.Graph.Parallel tests?  If it 
doesn't, is there a way to have those serialized as well?  That may avoid 
some of the timeouts that often cause the Boost.Graph.Parallel regression 
tests to fail.

-- Jeremiah Willcock