There is nothing that artifically slows down parallel instances. Of course available memory, ram bandwidth, storage speed, ... must be shared. Your computation is likely not CPU bound.
On Saturday, June 16, 2018 at 7:20:18 PM UTC+2, Peter Mueller wrote: > > Computing on a machine with 54 cpus, I parallelized a sage computation, > running 40 sage scripts in the background at the same time. The strange > thing (with narrowed down test examples) is: While each script for itself > would need about 1s to finish, running these scripts in parallel do not > finish even after 30m accumulated cpu time! Do several running instances of > sage conflict with each other? I checked that each process gets about 20% > cpu time (it should be 100%, because there are no other processes consuming > considerable cpu), but even given that the total time should be a few > seconds, and not more than an hour! > > -- Peter Mueller > > -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
