Posts by Gunnar Hjern

1) Message boards : Number crunching : When should a "stalled" task be aborted? (Message 1320)
Posted 2 Dec 2018 by Gunnar Hjern
Post:
Hi!

Yes, I've done so now, and even flushed another task that had run for nearly three days and showed the same signs:
I.e., when looking on the processes (w. 'top' on Linux) not finding the usual "gnfs-lasieve4I1", but only a single "yafu",
that seems to occupy 195% or 390% CPU (dep. on the number of cores).
That task was: yafu_ali_1468926_L85_C71_1543572912_18_0.

Have a nice new week!

//Gunnar
2) Message boards : Number crunching : When should a "stalled" task be aborted? (Message 1318)
Posted 2 Dec 2018 by Gunnar Hjern
Post:
Hi!

Top said the process is named "yafu" and running two threads.
By giving $ ps -aux command I got the following information:
"boinc 19047 197 0.7 112968 14328 ? SNl nov25 21898:42 yafu -threads 2 -batchfile in"

Should I abort the WU now?

//Gunnar
3) Message boards : Number crunching : When should a "stalled" task be aborted? (Message 1316)
Posted 2 Dec 2018 by Gunnar Hjern
Post:
Hi!

Thanx for fast reply!! :-)

Yes, both the CPU cores are still working 100%.

No, I don't throttle: Boinc gets 100% CPU.

I've found a directory:
/var/lib/boinc-client/slots/2/
but most of the files in there seems to be from the start date of the task:
There are ONE file: "boinc_mmap_file" that seems to change every minute or so, but the rest are 5 or 7 days old.
The next newest file is "init_data.xml" and that one stems from nov 27, but all the other files are all from nov 25.

//Gunnar
4) Message boards : Number crunching : When should a "stalled" task be aborted? (Message 1314)
Posted 2 Dec 2018 by Gunnar Hjern
Post:
Hi!

Since about a week one of my computers has worked on one and the same task, and it is still running...!
The task is already marked as "Timed out - no response", as it's final deadline was set at 2 Dec 2018, 0:04:47 UTC.
This is a bit surprising, as the task was from the "YAFU for small composites" bin, and I thought it would complete in hours rather than in days.

Facts:
task: yafu_ali_1294872_L86_C68_1543104023_10_0
sent: 25 Nov 2018, 0:04:47 UTC
computer CPU: Intel(R) Core(TM)2 Duo CPU T7300 @ 2.00GHz [Family 6 Model 15 Stepping 10]
computer nr: 38654

When should I give up and abort such tasks??

//Gunnar







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