Applications/Mvapich2 - Revision history

Pysdlb: /* Further Information */

2022-11-16T10:52:58Z

‎Further Information

Pysdlb at 13:29, 7 June 2018

2018-06-07T13:29:04Z

Pysdlb at 13:55, 28 April 2017

2017-04-28T13:55:50Z

Pysdlb: Pysdlb moved page Mvapich2 to Applications/Mvapich2 without leaving a redirect

2017-04-18T09:26:15Z

Pysdlb moved page Mvapich2 to Applications/Mvapich2 without leaving a redirect

Pysdlb: Created page with "TOC ==Application Details== * Description: The MVAPICH2 software, based on MPI 3.1 standard, delivers performance, scalability and fault tolerance for high-end computin..."

2017-04-18T09:24:56Z

Created page with "__TOC__ ==Application Details== * Description: The MVAPICH2 software, based on MPI 3.1 standard, delivers performance, scalability and fault tolerance for high-end computin..."

New page

__TOC__

==Application Details==

* Description: The MVAPICH2 software, based on MPI 3.1 standard, delivers performance, scalability and fault tolerance for high-end computing systems and servers using Omni-Path (Viper) networking technologies.
* Version: 2.2
* Modules: mvapich2/2.2/gcc-5.2.0, mvapich2/2.2/gcc-6.3.0 and mvapich2/2.2/intel-2017
* Licence: Open source

==Usage Examples==

Message Passing Interface (MPI) is a standardized and portable message-passing system designed by a group of researchers from academia and industry to function on a wide variety of parallel computing architectures. The standard defines the syntax and semantics of a core of library routines useful to a wide range of users writing portable message-passing programs in C, C++, and Fortran. The MVAPICH2 software family is ABI compatible with the version of MPICH it is based on.

===Interactive Mode===

This example runs on a reserved node (''eg.'' '''c001''')

<pre style="background-color: black; color: white; border: 2px solid black; font-family: monospace, sans-serif;">
[username@c001 ~]$ module load gcc/5.2.0
[username@c001 ~]$ module load mvapich2/2.2/gcc-5.2.0
[username@c001 ~]$ srun -n16 --mpi=pmi2 mvapichDEMO
</pre>

This can be run with a host file, the file here is called '''machinefile''':

<pre style="background-color: black; color: white; border: 2px solid black; font-family: monospace, sans-serif;">
[username@c001 ~]$ module load mvapich2/2.2/gcc-5.2.0
</pre>

The 'machinefile' is of the form:

<pre style="background-color: #f5f5dc; color: black; font-family: monospace, sans-serif;">
c001
c002:2
c003:4
c004:1
</pre>

* The ':2', ':4', ':1' segments depict the number of processes you want to run on each node.

===Non interactive job===

This runs on the scheduler SLURM

<pre style="background-color: #f5f5dc; color: black; font-family: monospace, sans-serif;">

#!/bin/bash
#SBATCH -J MPI-testXX
#SBATCH -N 1
#SBATCH --ntasks-per-node 4
#SBATCH -D /home/user1/CODE_SAMPLES/MPICH
#SBATCH -o %N.%j.%a.out
#SBATCH -e %N.%j.%a.err
#SBATCH -p compute
#SBATCH --exclusive

echo $SLURM_JOB_NODELIST

module purge
module load gcc/5.2.0
module load mvapich2/2.2/gcc-5.2.0

export I_MPI_DEBUG=5
export I_MPI_FABRICS=shm:tmi
export I_MPI_FALLBACK=no

srun -n16 --mpi=pmi2 /home/user1/CODE_SAMPLES/OPENMPI/scatteravg 100

</pre>

And passing it to SLURM

<pre style="background-color: black; color: white; border: 2px solid black; font-family: monospace, sans-serif;">

[username@login01 ~]$ sbatch mpidemo.job
Submitted batch job 889552

</pre>

==Further Information==

* [http://mvapich.cse.ohio-state.edu/ http://mvapich.cse.ohio-state.edu/]
* [https://en.wikipedia.org/wiki/MVAPICH https://en.wikipedia.org/wiki/MVAPICH]
* [https://en.wikipedia.org/wiki/Message_Passing_Interface https://en.wikipedia.org/wiki/Message_Passing_Interface]
* [https://slurm.schedmd.com/mpi_guide.html https://slurm.schedmd.com/mpi_guide.html]

{|
|style="width:5%; border-width: 0" | [[File:icon_home.png]]
|style="width:95%; border-width: 0" |
* [[Main_Page|Home]]
* [[Applications|Application support]]
* [[General|General]]
* [[Training|Training]]
* [[Programming|Programming support]]
|-
|}

← Older revision		Revision as of 10:52, 16 November 2022
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	* [https://slurm.schedmd.com/mpi_guide.html https://slurm.schedmd.com/mpi_guide.html]		* [https://slurm.schedmd.com/mpi_guide.html https://slurm.schedmd.com/mpi_guide.html]

−		+	{{Modulepagenav}}
−	{\|
−	~~\|style="width:5%; border-width: 0" \| [[File:icon_home.png]]~~
−	~~\|style="width:95%; border-width: 0" \|~~
−	* [[Main_Page\|Home]]
−	* [[Applications\|Application support]]
−	* [[General\|General]]
−	* [[Training\|Training]]
−	* [[Programming\|Programming support]]
−	\|-
−	\|}

@@ Line 17: / Line 17: @@
 <pre style="background-color: black; color: white; border: 2px solid black; font-family: monospace, sans-serif;">
-[username@c001 ~]$ module load gcc/5.2.0
+[username@c001 ~]$ module add gcc/5.2.0
-[username@c001 ~]$ module load mvapich2/2.2/gcc-5.2.0
+[username@c001 ~]$ module add mvapich2/2.2/gcc-5.2.0
 [username@c001 ~]$ srun -n16 --mpi=pmi2 mvapichDEMO
 </pre>
@@ Line 25: / Line 25: @@
 <pre style="background-color: black; color: white; border: 2px solid black; font-family: monospace, sans-serif;">
-[username@c001 ~]$ module load mvapich2/2.2/gcc-5.2.0
+[username@c001 ~]$ module add mvapich2/2.2/gcc-5.2.0
 </pre>
@@ Line 60: / Line 60: @@
 module purge
-module load gcc/5.2.0
+module add gcc/5.2.0
-module load mvapich2/2.2/gcc-5.2.0
+module add mvapich2/2.2/gcc-5.2.0
 export I_MPI_DEBUG=5

@@ Line 50: / Line 50: @@
 #SBATCH -J MPI-testXX
 #SBATCH -N 1
-#SBATCH --ntasks-per-node 4
+#SBATCH --ntasks-per-node 16
 #SBATCH -D /home/user1/CODE_SAMPLES/MPICH
 #SBATCH -o %N.%j.%a.out