Re: [OMPI users] Building with thread support on Windows?

[Shiqing Fan]

Hi Bjorn,

Unfortunately, the currently version of Open MPI for Windows doesn't 
support Posix nor Solaris threads.


However, the work of supporting MinGW is proceeding, which will support 
GNU compilers for building Open MPI on Windows, and it may partly 
support pthread, but still needs a lot of tests.



Regards,
Shiqing



On 2011-09-21 8:33 PM, Björn Regnström wrote:
I am building with VS 2008 and the compiler (cl) and the standard 
libraries that goes with
it, including the windows thread library. I have noted that ompi_info 
requires either Posix
or Solaris threads to report that open-mpi has thread support. Do I 
 need to change the

thread library and/or do I need another compiler?

Regards,
Bjorn Regnstrom

At Wednesday, 2011-09-21 on 17:32 Tim Prince wrote:

On 9/21/2011 11:18 AM, Björn Regnström wrote:
> Hi,
>
> I am trying to build Open MPI 1.4.3 with thread support on
Windows. A
> trivial test program
> runs if it calls MPI_Init or MP_Init_thread(int *argc, char
***argv, int
> required, int *provide) with
> reguired=0 but hangs if required>0. ompi_info for my build
reports that
> there is no thread
> support but MPI_Init_thread returns provide==required.
>
> The only change in the CMake configuration was to check
> OMPI_ENABLE_MPI_THREADS.
> Is there anything else that needs to be done with the configuration?
>
> I have built 1.4.3 with thread support on several linuxes and
mac and it
> works fine there.
>
Not all Windows compilers work well enough with all threading models
that you could expect satisfactory results; in particular, the
compilers
and thread libraries you use on linux may not be adequate for Windows
thread support.


-- 
Tim Prince

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--
---
Shiqing Fan
High Performance Computing Center Stuttgart (HLRS)
Tel: ++49(0)711-685-87234  Nobelstrasse 19
Fax: ++49(0)711-685-65832  70569 Stuttgart
http://www.hlrs.de/organization/people/shiqing-fan/
email: f...@hlrs.de

Re: [OMPI users] Building with thread support on Windows?

[Björn Regnström]

I am building with VS 2008 and the compiler (cl) and the standard
libraries that goes with 
it, including the windows thread library. I have noted that ompi_info
requires either Posix 
or Solaris threads to report that open-mpi has thread support. Do I
 need to change the 
thread library and/or do I need another compiler?
 
Regards,
Bjorn Regnstrom

At Wednesday, 2011-09-21 on 17:32 Tim Prince wrote:

On 9/21/2011 11:18 AM, Björn Regnström wrote:
> Hi,
>
> I am trying to build Open MPI 1.4.3 with thread support on Windows.
A
> trivial test program
> runs if it calls MPI_Init or MP_Init_thread(int *argc, char
***argv, int
> required, int *provide) with
> reguired=0 but hangs if required>0. ompi_info for my build reports
that
> there is no thread
> support but MPI_Init_thread returns provide==required.
>
> The only change in the CMake configuration was to check
> OMPI_ENABLE_MPI_THREADS.
> Is there anything else that needs to be done with the
configuration?
>
> I have built 1.4.3 with thread support on several linuxes and mac
and it
> works fine there.
>
Not all Windows compilers work well enough with all threading models 
that you could expect satisfactory results; in particular, the
compilers 
and thread libraries you use on linux may not be adequate for Windows

thread support.

-- 
Tim Prince
___
users mailing list
us...@open-mpi.org
http://www.open-mpi.org/mailman/listinfo.cgi/users

Re: [OMPI users] Building with thread support on Windows?

[Tim Prince]

On 9/21/2011 11:18 AM, Björn Regnström wrote:

Hi,

I am trying to build Open MPI 1.4.3 with thread support on Windows. A
trivial test program
runs if it calls MPI_Init or MP_Init_thread(int *argc, char ***argv, int
required, int *provide) with
reguired=0 but hangs if required>0. ompi_info for my build reports that
there is no thread
support but MPI_Init_thread returns provide==required.

The only change in the CMake configuration was to check
OMPI_ENABLE_MPI_THREADS.
Is there anything else that needs to be done with the configuration?

I have built 1.4.3 with thread support on several linuxes and mac and it
works fine there.

Not all Windows compilers work well enough with all threading models 
that you could expect satisfactory results; in particular, the compilers 
and thread libraries you use on linux may not be adequate for Windows 
thread support.



--
Tim Prince

[OMPI users] Building with thread support on Windows?

[Björn Regnström]

Hi,

I am trying to build Open MPI 1.4.3 with thread support on Windows. A
trivial test program 
runs if it calls MPI_Init or MP_Init_thread(int *argc, char ***argv,
int required, int *provide) with
reguired=0 but hangs if required>0. ompi_info for my build reports
that there is no thread
support but MPI_Init_thread returns provide==required. 

The only change in the CMake configuration was to check
OMPI_ENABLE_MPI_THREADS. 
Is there anything else that needs to be done with the configuration? 

I have built 1.4.3 with thread support on several linuxes and mac and
it works fine there. 

Regards,
Bjorn Regnstrom