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Re: Research Log: Updates from the Harvard Team

Like in previous years we have signed up for the 2011 MIT Energy Showcase on Friday March 4th, 2011 at the Westin Copley Place Boston (5PM to 8PM). If you are in the Boston area at that time, it is your chance to visit our booth and talk to the research team!
http://mitenergyconference.com/showcase.php
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Re: Research Log: Updates from the Harvard Team

We also got an endorsement from our Mexican connection here at Harvard:
http://www.huma.org.mx/blog/589671-harvard-clean-energy-project/
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Re: Research Log: Updates from the Harvard Team

Alan gave a talk at MIT yesterday titled ‘Finding new solar cells made of plastic: one screensaver at a time‘
http://shass.mit.edu/calendar/13574748
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Re: Research Log: Updates from the Harvard Team

Another quick question. I checked my stats and it showed that I detatched from a bunch of projects yesterday. I did not. What I did do was, boinc on one of my machines was in the middle of getting stupid, it had a ton of projects on it, and was running projects due a week from now at hi priority, and ignoring projects due in a day or so. With this, I suspended all the further out projects to force it to work on the nearly due ones so they didnt run out of time. Does temporarily suspending a project on a machine count as a detatch? If so, how can I get around this besides yanking the internet cable until I un-suspend them again?

Thanks
Aaron
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Re: Research Log: Updates from the Harvard Team

Huh? BOINC was not getting stupid... it was checking if the newest work might run faster than the oldest work in an oversized cache. Rather counter intuitive, but it's trying to learn and already knew the oldest work's projected times from running it for a little.

Now why these detaches occurred... some members have reported this, not science specific. One possible is that your client was recently associated with an account manager. Manually suspending tasks is not probable, unless you suspended "ready to start" PLUS ''running'' tasks simultaneous in 1 command. Results don't like being started for fractions of seconds, for that is than likely to happen. You'd run risk of exhausting RAM really fast.
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smile Re: Research Log: Updates from the Harvard Team

Alan gave a talk at MIT yesterday titled ‘Finding new solar cells made of plastic: one screensaver at a time‘
http://shass.mit.edu/calendar/13574748

You should post a podcast! Would love to hear it.
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Re: Research Log: Updates from the Harvard Team

Seke, I see what you are saying but it still doesn't seem like it makes a lot of sense. Why fiddle around with a task that is coming near due? From my calculations if I ran these tasks continually id have about 3 maybe 4 hours of 'slack' time to cover any issues with running them before they were late. Why not FIFO a task for the most part? Why run a task that has a week to be reported when you have a dozen that are due in a day or two? Even if you can squeeze one of the newer ones in, why???

Everything is good now, for now, all the tasks, even the ones that were near due, got project aborted and it assigned me new ones which are now running. It just seems that some aspects can be a little more efficient to me is all.

Aaron
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Re: Research Log: Updates from the Harvard Team

Hi Ascholten,
The BOINC cache algorithm is really designed to hold a weekend's worth of units. It is complicated and often changed. With many days of units, it works very strangely. I never keep more than a few hours in the cache.

Lawrence
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Re: Research Log: Updates from the Harvard Team

I am beginning to see that now Lawrence however the computer this one was on is not always connected to the internet and I was away from it for 5 days which is why I filled up on tasks to keep it busy while I was away. Generally I try not to hold a ton of tasks on my systems at a time in case of a crash or something, it doesn't leave that many in limbo until time out. Normally I will try to keep a few days worth in case comcast goes out (again) so im not starved for work but when times come where I might be afk for a while I load up to try to keep my machines gainfully employed.

Seke and lawrence thank you both for taking the time to answer my questions.

Aaron
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Re: Research Log: Updates from the Harvard Team

We posted a few pictures from Alan's talk at the MIT SHASS on our facebook page:

http://www.facebook.com/album.php?aid=59381&a...81&id=174883049191931

P.S.: Sorry for being behind with answering to forum posts - we hope to catch up over the weekend.
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