[mpich-discuss] Number processes/CPU in Hydra -hostlist

[Pavan Balaji]

This fix is committed in r6973 
[http://trac.mcs.anl.gov/projects/mpich2/changeset/6973]. The latest 
nightly snapshot 
[http://www.mcs.anl.gov/research/projects/mpich2/downloads/tarballs/nightly/trunk] 
should have it.

  -- Pavan

On 08/01/2010 03:17 PM, Pavan Balaji wrote:
>
> Thanks for the suggestion. We had gotten this request earlier too, but
> it never reached a high-enough priority. I've fixed this on my local git
> repository and will commit it in to the svn tomorrow (the svn server is
> down at the moment).
>
>    -- Pavan
>
> On 07/26/2010 01:56 PM, Yauheni Zelenko wrote:
>> Hi!
>>
>> I want to suggest next patch which will allow to specify number of processes/CPU in -hostlist command line option in Hydra.
>>
>> Goal is to provide similar functionality as Platform LSF's LSB_MCPU_HOSTS.
>>
>> Host name and number of CPUs may be separated with colon or space.
>>
>> Changes are in /home/zelenko/Installs/GCC4.4.0/mpich2-1.3a2.src/src/pm/hydra/ui/mpich/utils., hostlist_fn()
>>
>> from:
>>
>>       while (hostname) {
>>           status = HYDU_add_to_node_list(hostname, 1,&HYD_handle.node_list);
>>           HYDU_ERR_POP(status, "unable to add to node list\n");
>>
>>           hostname = strtok(NULL, ",");
>>       }
>>
>> to:
>>
>>       while (hostname) {
>> 	char* num_procs_str = NULL;
>> 	int num_procs = 1;
>>
>> 	num_procs_str = strchr(hostname, ':');
>> 	if (!num_procs_str)
>> 	    num_procs_str = strchr(hostname, ' ');
>> 	if (num_procs_str)
>> 	    {
>> 		*num_procs_str = '\0';
>> 		num_procs_str++;
>> 		num_procs = atoi(num_procs_str);
>> 	    }
>>           status = HYDU_add_to_node_list(hostname, num_procs,&HYD_handle.node_list);
>>           HYDU_ERR_POP(status, "unable to add to node list\n");
>>
>>           hostname = strtok(NULL, ",");
>>       }
>>
>> Eugene.
>> _______________________________________________
>> mpich-discuss mailing list
>> mpich-discuss at mcs.anl.gov
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>

-- 
Pavan Balaji
http://www.mcs.anl.gov/~balaji