Use a broadcast rather than an allreduce to send the read in response matrix data in fields_local
David Dickinson
Branch: minor/replace_sum_allreduce_sub_with_broadcast_sub_when_reading_local_response_file
Branch: 8.1.1-RC
Merged
Merged pull request
Merged in minor/replace_sum_allreduce_sub_with_broadcast_sub_when_reading_local_response_file (pull request #591)
This may give a small performance improvement, but mostly is just to help avoid confusion about why we would be doing a reduction.