[slurm-dev] Req: Sample code to submit a job using slurmn api

[Moe Jette]

What you have done using the APIs is create a job allocation.  
Launching tasks on compute nodes is something that I would not  
recommend doing using the APIs since handling the I/O buffering,  
signal forwarding, capturing exit codes, etc. is very complex. You can  
see that code in SLURM's srun command "src/srun". Executing the srun  
command rather than using the APIs will almost certainly be much  
simpler for you. If you need to use the APIs, then I would recommend  
starting with the srun code and modifying it as needed.


Quoting Palaniappa Manivasagam <palania...@gmail.com>:

[Hide Quoted Text]
Hi
I am new to slurm. I have to submit a job using slurm api.
A sample code snippet will be really helpful.
The following is what i have so far

job_desc_msg_t jobInfo;
     slurm_init_job_desc_msg(&jobInfo);

     jobInfo.alloc_node = host;
     jobInfo.argc = 1;
     jobInfo.argv = (char**) malloc(sizeof(char*)*jobInfo.argc);
     jobInfo.argv[0] = (char*) malloc(strlen("ls");
     strcpy(jobInfo.argv[0],"ls");
     jobInfo.req_nodes = (char*) malloc(MAX_HOST_NAME_LEN+1);
     strcpy(jobInfo.req_nodes,"ubuntu");
     jobInfo.immediate = 0;
     jobInfo.user_id = getuid();
     jobInfo.group_id = getgid();

     jobInfo.name = (char*) malloc(MAX_HOST_NAME_LEN+1);
     strcpy(jobInfo.name,"job1");

     //jobInfo.work_dir = (char*) malloc(100);
     //strcpy(jobInfo.work_dir,"/home/administrator/OsAssignment2");

     //printf("Allocation to host %s
%s\n",jobInfo.req_nodes,jobInfo.argv[0]);

     resource_allocation_response_msg_t* allocResponse = NULL;
     int retVal = slurm_allocate_resources(&jobInfo,&allocResponse);
     printf("\nAlloc ret %d",retVal);
     if(!retVal)
     {
         printf("Job allocation looks ok\n");

After executing this i am able to see the job with running status in sview.
However i don't think it runs.

--
Thanks
Palani