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Subject: [OMPI users] New User question
From: Larry Adelberg (terpsgeorgia_at_[hidden])
Date: 2009-02-24 13:54:40

Hello all, I am sorry to ask what is probably a newbie question, I have searched the archives but am probably not using the proper key word to locate. I am working on an atmospheric model which uses openmpi/openrte. I have two nodes setup but the model only runs on one node. I can use mpirun to execute an application on another node by entering the below on HOST1: mpirun --np 2 --host HOST2 APPNAME In this scenario, the system connects via ssh to HOST2 and runs the application without a problem. If I attempt to run: mpirun --np 2 --nolocal APPNAME I get: [virtualModel1:03939] [0,0,0] ORTE_ERROR_LOG: Temporarily out of resource in file base/rmaps_base_support_fns.c at line 168 [virtualModel1:03939] [0,0,0] ORTE_ERROR_LOG: Temporarily out of resource in file rmaps_rr.c at line 402 [virtualModel1:03939] [0,0,0] ORTE_ERROR_LOG: Temporarily out of resource in file base/rmaps_base_map_job.c at line 210 [virtualModel1:03939] [0,0,0] ORTE_ERROR_LOG: Temporarily out of resource in file rmgr_urm.c at line 372 [virtualModel1:03939] mpirun: spawn failed with errno=-3 Looking at the source code, that is the area where the available nodes are enumerated and this error appears to indicate no "non-local" node is available if I am interpreting this correctly. I have the hosts file correct along with the ssh key so the user can login without a password etc etc. I don't know where the system looks for identification of node IPs so this can be enumerated. Can someone give me a quick pointer to the correct location in the manual (I realize the answer is RTM but I have not found the answer in the manual thus far so I figured I would throw it out there to the experts). Thanks for your patience with my query.