Re: [OMPI users] hostfile without slots

2015-10-07 Thread tmishima
Hi, In addition to Ralph's explanation, you can change the policy of this behavior using MCA param orte_set_default_slots. For example, by setting "none" you can disable the auto detection of slots count, which means it's compatible with openmpi-1.6.X. Regards, Tetsuya Mishima

Re: [OMPI users] hostfile without slots

2015-10-07 Thread Ralph Castain
There is no problem with using numerical host names - we don’t care so long as your system can resolve them. The difference you are seeing relates to a change in behavior created during the 1.7 series. If you don’t specify the #slots on a host, then we automatically set it to the number of detec

[OMPI users] hostfile without slots

2015-10-07 Thread John Marshall
Hi, I've been running with 1.6.5 for some time and am now trying out 1.8.8 (I'll get to 1.10 soon). I have found a difference in behavior and I'm wondering what is happening. For special reasons, I have a host file which uses index values as logical names: 0 1 2 3 These are prope