Subject: Re: Boinc Cache Question
From: Klaatu
Date: 11/07/2004, 04:41
Newsgroups: alt.sci.seti

~misfit~ wrote:

Klaatu wrote:
~misfit~ wrote:

Alan Woodford wrote:
On Sat, 10 Jul 2004 17:04:00 GMT, Klaatu
<mutster8_nospam_@netscape.net> wrote:

Have a 2 to 3 day cache set for Boinc.  Noticed the cached WU's
start with about a 2 days supply but drops down to just one WU one
before the cache is built back up to 2 days worth.  Is anyone else
seeing this?  Is there an explanation or is it just a Boinc start
up issue, not enough units available?  Seems like the number of
cached units should remain relatively steady at whatever limits
have been set.  Didn't use a cache for classic so don't have any
comparitive info.  TIA

Not sure if it's the same problem, but...

My caches are filling with small numbers of units, with 26-28 hour
completion times (before they run), which are actually only taking
4-5 hours at most to process.
Both my machines have run the benchmarks in the last day or so, so
maybe something at Berkeley has gone awry?

Interesting you should mention this. I just noticed on a Celery 900
I'm using that the cache looked a little empty. Then I noticed that
one WU has a 'time to completion' of 50 hours! The rest are 7 hours.
That machine is only turned on now and then so I have the cache set
for 1-2 days. That one unit is more than two days. LOL.
--
~misfit~

Trying Boinc on an old 700 AMD.  Normally starts out with 5 WU's, 4
ready and one running.  Average WU time about 10 hours.  At the low
point I have just one WU ready ond one running.  Then Boinc goes back
to 5 WU's.  Same behavior last several days.  Running linux CLI with
Boincgui.  If the WU's are about the same length would expect to see
4 ready most of the time???

It depends on your high and low settings in your preferences. It only
downloads more units when it hits the 'low' (cache low-water mark)
setting. I'm guessing your settings are 0.5 - 2 days or similar? When it
gets to the low setting (according to the benchmarking) it then fills the
cache to the high setting. Make it 1.5 - 2 days and it will pretty much
download a new unit each time one is finished.

It's very flexible that way, you can set it to download virtually after
every unit or you can set it to download just every few days.
--
~misfit~

My low setting is 2 days and the high 3 since shortly after starting Boinc
on the 22nd. Initially the low was the default 0.1 if I remember correctly,
but I changed that just a day or two later so don't know why the cache
fluctuates so much.  Maybe I'll just bump up both limits one day and see
what happens.