[OMPI users] Infiniband driver update must recompile openmpi?

2018-05-29 Thread Kaiming Ouyang
Hi All,
I have a question about recompiling openmpi.
Recently I updated the infiniband driver for network card Mellanox, but I
found original openmpi did not work anymore. Does this mean the driver
update must be followed by recompiling openmpi? Or there are some other
issues I should consider? Thank you very much.

Kaiming Ouyang, Research Assistant.
Department of Computer Science and Engineering
University of California, Riverside
900 University Avenue, Riverside, CA 92521
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Re: [OMPI users] need help finding mpi for Raspberry pi Raspian Streach

2018-05-29 Thread Gilles Gouaillardet

Neil,


If that does not work, please compress and post your config.log


There used to be an issue with raspberry pi3 which is detected as an 
ARMv8 processor but the raspbian compilers only generate


ARMv6 compatible binaries.


If such an issue occurs, you might want to

configure CFLAGS=-march=armv6 LDFLAGS=-march=armv6


and try again


FWIW, I run openSuSE Leap for aarch64 (e.g. native ARMv8 processor) and 
have no issue building/using Open MPI




Cheers,

Gilles

On 5/30/2018 9:03 AM, Jeff Squyres (jsquyres) wrote:

If your Linux distro does not have an Open MPI package readily available, you 
can build Open MPI from source for an RPi fairly easily.  Something like this 
(not tested on an RPi / YMMV):

wget https://download.open-mpi.org/release/open-mpi/v3.1/openmpi-3.1.0.tar.bz2
tar xf openmpi-3.1.0.tar.bz2
cd openmpi-3.1.0
./configure |& tee config.out
make -j |& tee make.out
sudo make install |& tee install.out

This will download, configure, build, and install Open MPI into the /usr/local 
tree.

You can optionally specify a prefix to have it install elsewhere, e.g.:

./configure --prefix=/path/to/where/you/want/it/to/install |& tee config.out

Then do the make/sudo make again.



On May 29, 2018, at 6:43 PM, Neil k8it  wrote:

I  am starting to build a Raspberry pi cluster with MPI and I want to use the 
latest Raspian Streach Lite version from the raspberrypi.org website. After a 
lot of trials of watching youtubes on how to do this, I have found that the new 
version of Raspian Streach LITE is not compatible . I am looking for details 
instructions on how to install MPIwith this latest version of Raspian Streach 
Lite. I am using the newset hardware,RPI 3 B+ which requires this OS to use the 
features on the  -new chipset
  
  
  
  
  
Thanks

Neil
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Re: [OMPI users] need help finding mpi for Raspberry pi Raspian Streach

2018-05-29 Thread Jeff Squyres (jsquyres)
If your Linux distro does not have an Open MPI package readily available, you 
can build Open MPI from source for an RPi fairly easily.  Something like this 
(not tested on an RPi / YMMV):

wget https://download.open-mpi.org/release/open-mpi/v3.1/openmpi-3.1.0.tar.bz2
tar xf openmpi-3.1.0.tar.bz2
cd openmpi-3.1.0
./configure |& tee config.out
make -j |& tee make.out
sudo make install |& tee install.out

This will download, configure, build, and install Open MPI into the /usr/local 
tree.

You can optionally specify a prefix to have it install elsewhere, e.g.:

./configure --prefix=/path/to/where/you/want/it/to/install |& tee config.out

Then do the make/sudo make again.


> On May 29, 2018, at 6:43 PM, Neil k8it  wrote:
> 
> I  am starting to build a Raspberry pi cluster with MPI and I want to use the 
> latest Raspian Streach Lite version from the raspberrypi.org website. After a 
> lot of trials of watching youtubes on how to do this, I have found that the 
> new version of Raspian Streach LITE is not compatible . I am looking for 
> details instructions on how to install MPIwith this latest version of Raspian 
> Streach Lite. I am using the newset hardware,RPI 3 B+ which requires this OS 
> to use the features on the  -new chipset
>  
>  
>  
>  
>  
> Thanks
> Neil
> ___
> users mailing list
> users@lists.open-mpi.org
> https://lists.open-mpi.org/mailman/listinfo/users


-- 
Jeff Squyres
jsquy...@cisco.com

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[OMPI users] need help finding mpi for Raspberry pi Raspian Streach

2018-05-29 Thread Neil k8it
I  am starting to build a Raspberry pi cluster with MPI and I want to use the 
latest Raspian Streach Lite version from the raspberrypi.org website. After a 
lot of trials of watching youtubes on how to do this, I have found that the new 
version of Raspian Streach LITE is not compatible . I am looking for details 
instructions on how to install MPIwith this latest version of Raspian Streach 
Lite. I am using the newset hardware,RPI 3 B+ which requires this OS to use the 
features on the  -new chipset 





Thanks
Neil ___
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