nikos ioannidis a écrit :
Hello,


i want to ask if i run twice the Ray is it normal to take slightly different results?

Yes. This is because of the parallel ordering of tasks which is combinatorial.

Also when i use more cpus the time shouldn't reduce?

The speedup is not linear, but is pretty good nonetheless.

From 64 to 128 processor cores, you should see at least 30-40 % speedup.

However your mileage can vary (latency, NUMA memory).

or depents?
And another one, when i use more cpus this affects my results?
for example using 224 cpus for e.coli i get N50=80011
and if i use 64 cpus i get N50=68137, is normal to have a value +- 10K??


Is this N50 difference for contigs or scaffolds ?





Thank you.


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