-smp 8 faster than -smp 4: even with HT off

Madals · 23 Jun 2011 at 17:07

Basically, as the title says - the time taken to complete a work unit is faster when set to -smp 8 rather than -smp 4 even though I have HT off in the bios and am running a quad course.

Any idea's?

Madals · 23 Jun 2011 at 18:45

nope - had a bigadv unit 43% through with -smp8 going took 7mins per % on average. closed, re-opened with -smp4 and it only took 4mins per % (started where it left off)

Madals · 23 Jun 2011 at 20:15

Yeah I did get that the wrong way around.
Without HT:
SMP 4 : 7mins
SMP 8 : 4mins

With HT:
Haven't done any with HT on as don't want the system to over heat with the high OC (running at 62degs steady at 100% load)

Not sure how to find the work unit ID?

Specs - i7 930 @ 4.2Ghz: 6gb RAM : GTX 480 (which is running the GPU client at the same time)

Madals · 24 Jun 2011 at 00:21

All CPU's are running at 100% in both cases with no fluctuation.

To be honest, I have no clue and frankly it doesn't really matter as long as it gets it done faster!