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I'm getting excited...what is coming?
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Join MURCs Distributed Computing effort for Rosetta@Home and help fight Alzheimers, Cancer, Mad Cow disease and rising oil prices.
[...]the pervading principle and abiding test of good breeding is the requirement of a substantial and patent waste of time. - Veblen -
The upgrade I talked about is finally arriving. 3820 @ 4.3Ghz is being swapped with a 4930k on Saturday (CPU arriving on Friday, tomorrow. Hoping to push 4.5Ghz or more from it).
Should have a few more cores available for running then when I'm using it.
J1NGComment
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Ah yes, about 6 months ago! Completely forgot about that. In any case, now that Zokes has joined the Fallen we can really use extra crunching power.Join MURCs Distributed Computing effort for Rosetta@Home and help fight Alzheimers, Cancer, Mad Cow disease and rising oil prices.
[...]the pervading principle and abiding test of good breeding is the requirement of a substantial and patent waste of time. - VeblenComment
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Currently got it working without hiccups. Got two configurations that I can run with:
4.5Ghz, 1.34v core, 12 Threads, Up to 77C heat
and
4.25Ghz, 1.16v core, 12 Threads, Up to 60C heat
Picked the 4.25Ghz one as can't justify an extra 250Mhz for an extra 0.18v and near +20C extra heat production.
Also think I've found the issue with the 3820. The 4930K has an unlocked multiplier and so I can choose it myself and it'll Turbo to that number 4.25Ghz (34 multiplier x 125bclk), the 3820 defaults to 36 multiplier (3.6Ghz) before needing extra process to hit 4.3Ghz (Turbo number of 43 multiplier). So it was acting funny because of that.
Since I'm using the system as well, increased the threads to 9 (from 5 currently) and kept 3 threads free for anything else I might be doing. So nearly double of what I was producing prior. Won't make up the loss of Zokes, but will increase my output to compensate a bit whilst I'm logged in.
J1NGComment
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...so there goes my chance of catching you?
"Perhaps they communicate by changing colour? Like those sea creatures .."
"Lobsters?"
"Really? I didn't know they did that."
"Oh yes, red means help!"Comment
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Nah, you'll overtake easily. I'm still sorting out Boinc. Although everything is working fine, it's encountered a "constant reset" bug for all existing threads. Going to have to abort the current set of 9 and request some new ones. No new additions from me for at least a day.
J1NGComment
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Hmmm. Might have been a bit premature on the expunging of those last 9 units of work. I think instead I ran into a physical limitation of my existing USB Flash drive instead. With 6 work units I'm still running into the reset issue, it appears that a Corsair Voyager GT 16GB USB3 drive, is being hammered with around 900 near simultaneous file writes per second with 6 work units, and the poor drive is simply unable to cope with the demand.
The break off point appears to be approximately 750-800 near simultaneous writes (approx 130-140 separate file writes per work unit), even if it's just small changes in total (<15kb in size). Anything above this number of near simultaneous file writes and the drive will simply fail the writes and Boinc will reset the work unit to 0% again to repeat (at 9 work units, it was attempting some 1350 odd file writes in quick succession. So there is a rather bad limitation of using a USB Flash drive as the storage for Boinc. I'm going to have to see if I can't find a way to Ramdisk it, or grab an older HD to plonk it on if I want more than 5 work units at a time going.
J1NGComment
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Aside from not getting credits for the team, I actually think this is funny: you are thrashing a USB Flash drive. What Class is it? And how do you know how many file operations are issued?Join MURCs Distributed Computing effort for Rosetta@Home and help fight Alzheimers, Cancer, Mad Cow disease and rising oil prices.
[...]the pervading principle and abiding test of good breeding is the requirement of a substantial and patent waste of time. - VeblenComment
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For what it is worth, I am running Rosetta on my Server on the SSD. I did have some concern about it wearing the SSD out but after 78 days, 2.04TB has been written in total, so that is 10TB per annum and includes install and all other OS driven writes. It is actually a lot less than I had expected and I see no reason to redirect it to a spinner anymore. And that is with 8 threads running basically full time (albeit it 3.0 / 3.1 Ghz i7-3770).Join MURCs Distributed Computing effort for Rosetta@Home and help fight Alzheimers, Cancer, Mad Cow disease and rising oil prices.
[...]the pervading principle and abiding test of good breeding is the requirement of a substantial and patent waste of time. - VeblenComment
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Oh, and it seems Taz-Matt has Resurrected! Don't tell him, he may not actually be aware his PCs are crunching again (and well they do indeed)! Thanks!Join MURCs Distributed Computing effort for Rosetta@Home and help fight Alzheimers, Cancer, Mad Cow disease and rising oil prices.
[...]the pervading principle and abiding test of good breeding is the requirement of a substantial and patent waste of time. - VeblenComment
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Was keeping an eye on things through Resource Monitor when I found the resetting of the Work Units. And found near 130 small files being access for writes each second per work unit.
USB flash drive is an older Corsair Voyager GT USB3 16GB model bought in 2012 but design and manufacture was from 2009 I think. So it's IOPS is probably not as great as it should be, hence why it's choking when I tried putting more than 5 Work Units going simulatenously. Will be trying a later confirmed model and if that fails, either find an old HDD or an ultra cheap SSD to install and crunch on. But I'm definitely not going to install Boinc onto the two existing SSD drives in this system.
Stopped getting any new work units for now, going to finish the existing ones off, then try installing onto a new storage area. Should be done by tomorrow.
J1NGComment
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Tazs-Matt, I think you dropped out again but in the meantime gained us 30K credits, thanks for that!
I am missing credits from Mashmallowman, VJ and J1NG. Dang the Australian summer and new build issues.
Meanwhile, I have reclaimed my #1 spot within a the team. It took me a Server rebuild and a lot of time but the natural order has been restored
Join MURCs Distributed Computing effort for Rosetta@Home and help fight Alzheimers, Cancer, Mad Cow disease and rising oil prices.
[...]the pervading principle and abiding test of good breeding is the requirement of a substantial and patent waste of time. - VeblenComment
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We will see for how long
I do not feel comfortable being 2 :PA CRAY is the only computer that runs an endless loop in just 4 hours...Comment
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Give it all you got!Join MURCs Distributed Computing effort for Rosetta@Home and help fight Alzheimers, Cancer, Mad Cow disease and rising oil prices.
[...]the pervading principle and abiding test of good breeding is the requirement of a substantial and patent waste of time. - VeblenComment
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Given up on getting Boinc working on USB Flash entirely now.
Can't get it to run more than 5 threads before it falls over itself on any USB Flash drive I have. And no longer have a HDD available since the last once has just failed as I was setting it up for Boinc.
So I'm going to stick it on the SSD and monitor usage and degredation over the next 4 weeks. Assuming it's acceptable, I'll keep it there.
9 threads and running now at 4.25Ghz each.
J1NGComment
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