Posts by Alessandro Freda

1) (Message 7336)
Posted 17 Nov 2022 by Alessandro Freda
Post:
Welcome back!

About the tweaks, BoincStats still shows the project as "retired"
is it a problem about the export of xml statistics or is it BS side that needs to be solved ?


Hi Alessandro Freda and thank you!

About the BoincStats,
If you refer to this page: https://boinc.netsoft-online.com/e107_plugins/boinc/bp_retired.php It's possible that it took some time to the system to gather stats for the projects before update the data.
Here https://boinc.netsoft-online.com/e107_plugins/boinc/bp.php?project=147 I can see that stats are changing.

Cheers,
Georgi

Good, now also BoincStats seems aligned.

Thanks,
Ale
2) (Message 7320)
Posted 16 Nov 2022 by Alessandro Freda
Post:
Welcome back!

About the tweaks, BoincStats still shows the project as "retired"
is it a problem about the export of xml statistics or is it BS side that needs to be solved ?
3) (Message 6051)
Posted 20 Nov 2018 by Alessandro Freda
Post:
I sent hum a private message yesterday to which I've had no reply yet. I've not deleted mine, I don't want them going out again wasting someone elses CPU time. These tasks are wasting weeks of crunching.

Ok, so you suggest to suspend these WUs ? (to avoid to waste also my CPU time) Anyway deadline and reschedule will come.
4) (Message 6049)
Posted 19 Nov 2018 by Alessandro Freda
Post:
Same problem on at least 2 my PCs (first running on AVX, 2dn on SSE2),
these are some of the "long" WUs:

ps_181113_input_107029_2_0
ps_181113_input_107029_1_0
ps_181113_input_107029_3_0
ps_181108_input_31762_6_1
ps_181108_input_31762_5_1
ps_181102_input_10465_1_2
ps_181020_input_169988_4_3

it seems to me that it was an old problem, seen some years ago
The question is, it's happening again, or they're a new kind of WU ?
I'm erasing them so far ...
5) (Message 4862)
Posted 13 May 2016 by Alessandro Freda
Post:
Can't upload results:

13-May-2016 5:56:07 PM | Asteroids@home | [error] Error reported by file upload server: Server is out of disk space
6) (Message 4559)
Posted 7 Jul 2015 by Alessandro Freda
Post:
I'm trying and app_info "avx only", on a xeon E5-2620 (win7 64 bit) and before with SSE3 and ps_150618* WUs cpu time was about 16000 sec, now with avx and ps_150619* WUs cpu time is about 20000 sec. Is this due to diff between WUs or on some avx cpu SS3 are more efficient ?

Moreover, using app_info the WUs queue is always empty so seems that CPU stay idle many hours between WUs download.
7) (Message 4470)
Posted 28 May 2015 by Alessandro Freda
Post:

why HT off, performs better with avx ?


Because number of double precision units match number of physical cores.

BTW if I limit HT via BIOS settings, this will impact other projects that benefit by the HT. Correct ?

On a my old xeon initally with HT disabled, I observed a 5% RAC increase 30 days after enabling HT, could be realistic ?

Could be correct say that highly optimized (double precision) apps do not benefit by the HT, while less optimized benefit more by the HT ?
8) (Message 4416)
Posted 24 Apr 2015 by Alessandro Freda
Post:
ie (this is the one I found on the forums and use with W7 / i7 4770K / HT OFF)

why HT off, performs better with avx ?
I've an "old" xeon E5-2620, could I try to use app_info to switch from sse2 to avx ?
9) (Message 2263)
Posted 30 Dec 2013 by Alessandro Freda
Post:
It works also on Quadro series ?
I have this one:

NVIDIA GPU 0: Quadro FX 1800 (driver version 331.82, CUDA version 6.0, compute capability 1.1, 768MB, 8381137MB available, 264 GFLOPS peak)


but cannot get work:

30/12/2013 10:57:55 | Asteroids@home | Requesting new tasks for NVIDIA
30/12/2013 10:58:00 | Asteroids@home | Scheduler request completed: got 0 new tasks

10) (Message 1784)
Posted 25 Sep 2013 by Alessandro Freda
Post:
My uploads fail with this message:

25/09/2013 23:22:12 | Asteroids@home | Started upload of ps_130910_21447_224_1_0
25/09/2013 23:22:14 | Asteroids@home | [error] Error reported by file upload server: can't open log file '../log_project1/file_upload_handler.log' (errno: 9)
25/09/2013 23:22:14 | Asteroids@home | [error] Error reported by file upload server: can't open log file '../log_project1/file_upload_handler.log' (errno: 9)
25/09/2013 23:22:14 | Asteroids@home | Temporarily failed upload of ps_130910_21411_146_0_0: transient upload error
11) (Message 1652)
Posted 4 Sep 2013 by Alessandro Freda
Post:
Any news about the problem ?
On my PCs seems that the download fails are more than successful one.
12) (Message 1591)
Posted 27 Aug 2013 by Alessandro Freda
Post:
Thank you.
So how many "slow" WUs must be processed by validator, to choose the fastest client ?
13) (Message 1589)
Posted 27 Aug 2013 by Alessandro Freda
Post:
Is normal that the same PC download (today) WUs both for SSE2 and non-SSE2 client ?
http://asteroidsathome.net/boinc/results.php?hostid=19080&offset=0&show_names=0&state=2&appid=
14) (Message 678)
Posted 16 Jan 2013 by Alessandro Freda
Post:
Thanks for the detailed reply, i understand now

note:
my raspberry pi has completed a unit

http://asteroidsathome.net/boinc/results.php?hostid=7458

completed in 51.34 hours :-)

anyone done one faster ?

120 stats points he heh, look out top computer list

This is my host:

http://asteroidsathome.net/boinc/show_host_detail.php?hostid=7663

no OC (700MHz) and Radioactive and QCN clients running on their sensors, it's at 73% afer 2d 10h

Despite the low consumption rasPi not seem to have an efficiency flops / watt interesting. But in the next few months could be interesting to evaluate this:

http://www.gizmag.com/parallella-supercomputing-for-the-masses/24764/