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Found 187013 threads
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1 VotesSpecify cores per node in MPI application and run multiple task on a node
Hello Hirakata-san there error that you get is because you specify -cores 1, this makes mpiexec think that there is only one core on each node ...Answered | 4 Replies | 9047 Views | Created by hirakata - Friday, October 31, 2008 3:30 AM | Last reply by Lio - Friday, November 14, 2008 1:57 AM
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4 Votes
How to use only one core of a node?
But the heat map indicates that 4 cores per node are working on 2 nodes (no other jobs are running!)Answered | 10 Replies | 9745 Views | Created by parsus - Wednesday, September 10, 2008 10:49 AM | Last reply by pkalyanrao - Monday, June 15, 2009 5:02 PM -
0 Votes
MPI and head node
Suggest you use a combination of these MPI functions: MPI_Get_processor_name, MPI_Comm_rank, MPI_Bcast Have each rank execute MPI_Get_processor_name() which ...Answered | 3 Replies | 7408 Views | Created by Wei Xu - Tuesday, May 13, 2008 8:37 AM | Last reply by elantz - Tuesday, June 24, 2008 1:14 AM -
0 Votes
Node & Core Allocation Priorities for Tasks in the JOB
There are a couple of things you could try though: Submit each task a separate, 1 core job and /orderby the number of available ...Answered | 1 Replies | 6675 Views | Created by PVASNMurthy - Thursday, March 5, 2009 11:08 AM | Last reply by Josh Barnard - Tuesday, March 10, 2009 6:57 PM -
1 Votes
How to use a specific core of a specifc node?
There isn't a way for you to target a specific core, however the scheduler will handle starting up one task (or MPI rank) on each core for you.Answered | 1 Replies | 5835 Views | Created by VenomR - Thursday, June 4, 2009 9:11 PM | Last reply by Josh Barnard - Tuesday, June 9, 2009 5:56 PM -
4 Votes
What is the difference between these two job resources, core and node?
Why not just schedule one MPI process per core, and let the MPI implementation handle all communciations for you?Answered | 6 Replies | 8835 Views | Created by hd banki - Tuesday, March 27, 2012 10:20 PM | Last reply by Michael_Man - Tuesday, April 3, 2012 12:20 AM -
1 Votes
How to prevent splitting of assigned cores on multiple nodes
The following runs your program on any node with at least 4 cores.Answered | 4 Replies | 5966 Views | Created by BiedImt - Monday, February 8, 2010 5:28 PM | Last reply by BiedImt - Thursday, February 11, 2010 7:46 AM -
3 Votes
Prevent a task to be split among multiple nodes
This always fails with "Should have only run on 1 core but ran on 2 cores (MyNodeA,MyNodeB)" One of the tasks gets split across 2 ...Answered | 10 Replies | 5928 Views | Created by CadErikWork - Wednesday, September 26, 2012 3:14 PM | Last reply by TimJRoberts1 - Friday, September 26, 2014 12:06 PM -
0 Votes
MPI, C# and Executing Tasks
I used the above hack to run a simple process on my dual core desktop and the results were decent/encouraging. bot cores were upto 100% utilization.Answered | 6 Replies | 11772 Views | Created by manyu_aditya - Tuesday, November 20, 2007 12:11 AM | Last reply by bigger kahuna - Saturday, January 19, 2008 11:50 PM -
0 Votes
avoid even distribution of jobs among nodes
But this would even affect MPI-based parallel jobs if they are being started using the default template.Answered | 1 Replies | 5061 Views | Created by Peter_We - Monday, April 19, 2010 9:55 PM | Last reply by MWirtz - Thursday, April 22, 2010 12:49 PM -
0 Votes
Limiting node load in HPC R2
This will force only one task to run on a node at a time job new job add <id> /exclusive:true myapp.exe 2) ...Answered | 6 Replies | 6167 Views | Created by Derek Kivi - Thursday, October 28, 2010 5:43 PM | Last reply by Derek Kivi - Thursday, January 20, 2011 6:15 PM -
0 Votes
Forcing Rank 0 to a particular cluster node
My other MPI programs build fine.Answered | 4 Replies | 9867 Views | Created by RajahS - Monday, September 28, 2009 11:57 AM | Last reply by elantz - Wednesday, July 20, 2011 4:52 PM -
0 Votes
Running an MPI job using the HPC scheduler in several hosts
, while there is just one task, with the whole MPI world inside.Answered | 1 Replies | 7051 Views | Created by Alberto Cuesta Canada - Friday, September 7, 2012 6:54 AM | Last reply by Alberto Cuesta Canada - Monday, September 10, 2012 4:52 AM -
0 Votes
HPC R2: More HPC service instances running on node than there are cores
We had changed the VM configuration from 4-core to 2-core and rebooted the compute nodes.Answered | 3 Replies | 5311 Views | Created by Derek Kivi - Wednesday, January 19, 2011 9:54 PM | Last reply by Lukasz Tomczyk - Thursday, January 20, 2011 9:59 PM -
0 Votes
MS-MPI and cmd Windows server 2008
;) Run your job like this: job submit /numnodes:2 mpiexec Greetings.exe to run the MPI ...Answered | 1 Replies | 17157 Views | Created by Hesham Adel - Friday, September 12, 2008 8:38 PM | Last reply by elantz - Tuesday, September 16, 2008 3:16 PM -
0 Votes
MS-MPI Connection Errors
Also, the same issue occurred in a different mode of the program, where the first MPI communication calls were mpi_isend instead of mpi_alltoallv.Answered | 2 Replies | 8651 Views | Created by dhr46 - Monday, June 16, 2008 6:13 PM | Last reply by dhr46 - Tuesday, June 17, 2008 8:41 PM -
0 Votes
MPI problem
Hi Jong, The MPICH_ND_ZCOPY_THRESHOLD parameter controls when the Network Direct communication channel in MS-MPI switches from copying user data into pre-registered buffers ...Answered | 3 Replies | 8315 Views | Created by yyalli - Friday, November 6, 2009 6:10 AM | Last reply by Fab Tillier [MS] - Sunday, January 17, 2010 4:30 PM -
0 Votes
Using one processor from each of multiple nodes on ccp 2003
8 should be set to the number of processors per node of your cluster!Answered | 3 Replies | 7534 Views | Created by skiffzzz - Thursday, October 29, 2009 2:27 AM | Last reply by skiffzzz - Wednesday, December 9, 2009 8:45 AM -
2 Votes
HPC - Unreachable node
The first table contains one record per node and core.Answered | 10 Replies | 12137 Views | Created by Marc Coste - Saturday, May 16, 2009 4:39 PM | Last reply by rmag - Monday, May 18, 2009 12:50 PM -
1 Votes
Multi-core tasks that will run on a single node (not MPI)
In which case, your job will only run on the specified node and would not spill over into another node.Unanswered | 8 Replies | 7959 Views | Created by Mithlan - Wednesday, May 11, 2011 5:46 PM | Last reply by WesHinsley - Tuesday, July 24, 2012 3:07 PM - Items 1 to 20 of 187013 Next ›
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