$ ./configure --help |& grep thread
                          code will ever run in SMP or multi-threaded
  --enable-opal-multi-threads
                          Enable thread support inside OPAL (default:
  --enable-mpi-thread-multiple
                          Enable MPI_THREAD_MULTIPLE support (default:
  --with-threads          Set thread type (posix)



On Nov 5, 2014, at 3:32 AM, Joshua Ladd <jladd.m...@gmail.com> wrote:

> Jeff,
> 
> What configure voodoo do we need to add to our MTT to get this functional 
> again?
> 
> Josh
> 
> On Tue, Nov 4, 2014 at 12:33 PM, Ralph Castain <rhc.open...@gmail.com> wrote:
> That would be correct - we restored some configure flags that are required to 
> make multi-thread programs work. Jeff can probably provide more info.
> 
> 
>> On Nov 4, 2014, at 9:15 AM, Alina Sklarevich <ali...@dev.mellanox.co.il> 
>> wrote:
>> 
>> Hi,
>> 
>> We observe a hang when running the multi-threading support test "latency.c" 
>> (attached to this report), which uses MPI_THREAD_MULTIPLE.
>> 
>> The hang happens immediately at the begining of the test and is reproduced 
>> in the v1.8 release branch.
>> 
>> The command line to reproduce the behavior is:
>> 
>> $ mpirun --map-by node --bind-to core -display-map -np 2 -mca pml ob1 -mca 
>> btl tcp,self ./thread-tests-1.1/latency
>> 
>> The last commit with which the hang doesn't reproduce is:
>> commit: e4d4266d9c69e
>> 
>> 
>> 
>> And problems begin after commit:
>> 
>> 
>> 
>> commit 09b867374e9618007b81bfaf674ec6df04548bed
>> 
>> Author: Jeff Squyres <jsquy...@cisco.com>
>> 
>> Date:   Fri Oct 31 12:42:50 2014 -0700
>> 
>> 
>> 
>>     Revert most of open-mpi/ompi@6ef938de3fa9ca0fed2c5bcb0736f65b0d8803af
>> 
>> 
>> 
>> Is this expected behavior? In other words, should we not expect any stable 
>> release in the 1.8.x series to be able to use MPI_THREAD_MULTIPLE with even 
>> the TCP and SM BTLs?
>> 
>> 
>> 
>> Please advise. 
>> 
>> 
>> 
>> Thanks,
>> 
>> Alina.
>> 
>> 
>> 
>> 
>> 
>> <latency.c>_______________________________________________
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>> http://www.open-mpi.org/community/lists/devel/2014/11/16175.php
> 
> 
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> 
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-- 
Jeff Squyres
jsquy...@cisco.com
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