Hello. since Sage 8.2 sage.parallel.ncpus.ncpus() returns 1 if you have no environment variables such as MAKE, SAGE_NUM_THREADS, MAKEOPTS set.
This number is used by the @parallel decorator and similar constructions to determine the number of processes to run in parallel. (Unless during doctests, then it's set to 2 I think.) The question is: What is a good default for things such as @parallel when SAGE_NUM_THREADS has not been set? I think that 1 is not a good one. The actual number of cores/threads on a system probably isn't either on servers with lots of cores. At some point we had `min(8, number of threads)` which appears reasonable to me. Please join the discussion at https://trac.sagemath.org/ticket/24937 :) julian -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
