Skip to main content

Thread: MPI_Allreduce thread safe?

-

hello there

here says operation thread safe, i'm not quite sure how interpret that.

since particular call doesn't accept "tag" parameter, think not thread safe; instance, if have 10 process 3 threads each , each thread calls mpi_allreduce...

can sure calls not mixed?

knows alternative collective operation thread safe?

seems we're expected have private communicator each group of threads.
http://www.mcs.anl.gov/research/proj..._comm_dup.html

should work now.


Forum The Ubuntu Forum Community Ubuntu Specialised Support Development & Programming Programming Talk MPI_Allreduce thread safe?


Ubuntu

Comments

Post a Comment

Popular posts from this blog

Thread: Firefox print dialog doesn't remember settings

-
hi, in ubuntu 12.04, firefox doesn't remember last used print settings in file - print (ctrl+p) dialog. need firefox remember exact settings used last time in print dialog. how this? in about :config, print.save_print_settings variable set true. still doesn't work. print file. have start on configuring print settings in print dialog, please help! i have same problem looks likes problem older firefox(gnome?) not respecting cups defaults doesnt seem there change it. if find solution please post here Forum The Ubuntu Forum Community Ubuntu Official Flavours Support General Help [ubuntu] Firefox print dialog doesn't remember settings Ubuntu
Read more

Error 400 - Photoshop services are not available

-
i keep getting error messge every time try log in. help? i take using pse 10 or earlier. photoshop.com dead , gone. should have received number of emails photos getting moved adobe revel, revel not direct replacement photoshop.com. can't use within pse. need stop using welcome screen, since try connect non-existent server:   http://barbarabrundage.com/2013/09/16/pse-8-9-10-cant-sign-in-error-404/ More discussions in Photoshop Elements adobe
Read more

After Effects error:creating resource file on Windows

-
hi   i have problem set of plugins developing. have 20 different plugins. after apply 10th plugin, gives following error on windows (cs6):   after effects error:creating resource file "....aex" ( 3 :: 0 )   i can have many instances of same plugin once have total of 10 different error comes up   one thing being enabled in plugin flag: pf_outflag_keep_resource_open   is culprit?   thanks in advance donj More discussions in After Effects SDK adobe
Read more