Done -- how's this: http://www.open-mpi.org/faq/?category=openfabrics#ib-btl
On May 27, 2011, at 12:53 PM, Gus Correa wrote: > Eugene Loh wrote: >> On 5/27/2011 4:32 AM, Jeff Squyres wrote: >>> On May 27, 2011, at 4:30 AM, Robert Horton wrote: >>>>> To be clear, if you explicitly list which BTLs to use, OMPI will only >>>>> (try to) use exactly those and no others. >>>> It might be worth putting the sm btl in the FAQ: >>>> >>>> http://www.open-mpi.org/faq/?category=openfabrics#ib-btl >>> Is this entry not clear enough? >>> >>> http://www.open-mpi.org/faq/?category=tuning#selecting-components >> I think his point is that the example in the ib-btl entry would be more >> helpful as a template for usage if it added sm. Why point users to a >> different FAQ entry (which we don't do anyhow) when three more characters >> ",sm" makes the ib-btl entry so much more helpful. >> _______________________________________________ >> users mailing list >> us...@open-mpi.org >> http://www.open-mpi.org/mailman/listinfo.cgi/users > > Hi Jeff, list > > I agree with Eugene and Robert. > By all means, please add ",sm" to "openib,self" in: > > http://www.open-mpi.org/faq/?category=openfabrics#ib-btl > > I am yet to see a situation where you want to run with openib and self, > but exclude sm (except for testing, perhaps when memcpy is broken). > > Maybe that is what led Salvatore Podda think there was a > "Law of Least Astonishment" behind the mca parameters syntax, > which would insert "sm" automatically to the other two btl, > which is not really the case. > > Like Salvatore, I've got confused by the mca parameter > syntax in the past also. > My recollection is that Jeff wrote the second > FAQ to placate my whining in the list about > to sm or not to sm. > > However, the second FAQ clarifies the mca parameter logic, > along with the role of the "^" clause, and IMHO should be kept there: > > http://www.open-mpi.org/faq/?category=tuning#selecting-components > > My two cents, > Gus Correa > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users -- Jeff Squyres jsquy...@cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/