Binary Radio Pulsar Search (Parkes...) Units.
4 Mar 2015 17:40:54 UTC
Topic 198002
(moderation:
Anyone else get hit with these???!!!???
My GTX-760 on Exeter is crunching three at a time, (as set to do), and is estimating just over 15 Hours per Unit to complete!!! I don't even want to think about what would've happened if one of these hit Prometheus's GTX-275; so, I changed my settings to NOT crunch these on Prometheus. Depending on how long Exeter really takes, I might eliminate them from her as well.
TL
TimeLord04
Have TARDIS, will travel...
Come along K-9!
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Binary Radio Pulsar Search (Parkes...) Units.
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Yes and soon these are all that's gonna be available for Nvidia and AMD GPUs around here.
Read more about them in the tech news section in the thread "Binary Radio Pulsar Search (Parkes PMPS XT) "BRP6"".
There's also a beta test of an new application version for this search discussed in that thread and it seems to speed up crunch times by quite a bit (for most tasks anyway). Edit your Einstein@home prefs and opt in on beta/test applications if you don't want to wait for it to be the new standard app.
Also remember that estimates is just that, an estimate. It might go faster (or slower). As this is a new search you might want to experiment with the number of simultaneous tasks on the GPUs, it might be better/faster to run x2.
Edited for spelling and links.
TL, Move to 1, possibly 2
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TL,
Move to 1, possibly 2 work units at a time. Anything more is counter productive.
On the plus side, Parks beta 1.50 are running super quick. So you might want to try some of those.
Zalster
OK, I've changed my settings
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OK, I've changed my settings on Einstein to 0.50 to only crunch two units at a time. Thanks, Zalster. :-)
Update: At 2:45:35 crunching time, units are 38% done crunching the current three at a time. I estimate that Exeter will finish the three units in about eight hours; not the 15.5 originally estimated.
I assume that times will be even quicker once Exeter drops to crunch only two at a time. (Waiting for new preference settings to be read in by BOINC. I tried to force by hitting Update; but, BOINC did NOT re-read preferences, yet.)
TL
TimeLord04
Have TARDIS, will travel...
Come along K-9!
Join SETI Refugees
RE: crunch only two at a
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The effective instruction to your host to change the number of simultaneous work units arrives when it downloads fresh work units of that time--not before. It is not a question in your case of BOINC re-reading preferences.
RE: Parks beta 1.50 are
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Compared to, Perseus, or to Parkes before the new Betas, the current Parkes Beta application gives highly variable elapsed time, and hugely variable CPU time for the support application in a data-dependent way. Any conclusion from a small sample of work won't be trustworthy.
Having said that, I do like the Parkes beta, and think it a good reason to have enabled acceptance of beta work on all my hosts at the moment.