Welcome to MilkyWay@home

New runs of MilkyWay Nbody out


Advanced search

Message boards : News : New runs of MilkyWay Nbody out
Message board moderation

To post messages, you must log in.

1 · 2 · 3 · Next

AuthorMessage
Eric Mendelsohn
Volunteer moderator
Project administrator
Project developer
Project scientist

Send message
Joined: 21 Aug 18
Posts: 22
Credit: 2,336,425
RAC: 9,555
2 million credit badge1 year member badge
Message 68578 - Posted: 23 Apr 2019, 21:07:28 UTC

Hello all,
I just wanted to let you know that new runs for the newest version of the MilkyWay@home Nbody program have just been released. The names of these new runs are:
-de_nbody_04_23_2019_v176_40k__data__1
-de_nbody_04_23_2019_v176_40k__data__2
-de_nbody_04_23_2019_v176_40k__data__3
I apologize for any inconveniences over the last few days. If you have any issues with these runs, please let me know on this thread and I will try to sort them out as quickly as I can.
Just so you know, some of the changes we made for this nbody version take runs that would've taken extremely long times to compute and return success immediately. As such, credit for nbody may be a little strange until the server recognizes the new average runtime. Also note that there is no longer support for multi-threaded.
Again, thank you all for your continued support.
-Eric Mendelsohn
ID: 68578 · Rating: 0 · rate: Rate + / Rate - Report as offensive     Reply Quote
Profilerfzl

Send message
Joined: 17 Nov 09
Posts: 4
Credit: 16,860,362
RAC: 36,985
10 million credit badge9 year member badge
Message 68579 - Posted: 24 Apr 2019, 3:03:43 UTC - in response to Message 68578.  
Last modified: 24 Apr 2019, 3:08:19 UTC

Just checked my machines and see all of the my nbody tasks are failing with computation errors. I looked and can see the executable in the project folder so appears to be an issue on the server side.

The tasks are "de_nbody_4_16_2017_v174_20k__sim..." and are associate with the app "milkyway_nbody_1.76_x86_64-pc-linux-gnu"

Don't know enough to say these are new or just new to me.

Ron
ID: 68579 · Rating: 0 · rate: Rate + / Rate - Report as offensive     Reply Quote
Dark Angel

Send message
Joined: 15 Nov 10
Posts: 3
Credit: 2,752,182
RAC: 102
2 million credit badge8 year member badge
Message 68580 - Posted: 24 Apr 2019, 5:32:11 UTC

I am also getting large numbers of failures with the 1.76 work. They run for a few seconds at most then error out.

Checking my error list the phrase "too many errors may have a bug" comes up repeatedly.
ID: 68580 · Rating: 0 · rate: Rate + / Rate - Report as offensive     Reply Quote
Dark Angel

Send message
Joined: 15 Nov 10
Posts: 3
Credit: 2,752,182
RAC: 102
2 million credit badge8 year member badge
Message 68581 - Posted: 24 Apr 2019, 6:03:10 UTC

Application
Milkyway@home N-Body Simulation 1.76
Name
de_nbody_4_16_2017_v174_20k__sim_ex_1_1555431910_15537
State
Computation error
Received
Wed 24 Apr 2019 16:00:56 AEST
Report deadline
Mon 06 May 2019 16:00:55 AEST
Estimated computation size
31,856 GFLOPs
CPU time
00:00:00
Elapsed time
00:00:05
Executable
milkyway_nbody_1.76_x86_64-pc-linux-gnu
ID: 68581 · Rating: 0 · rate: Rate + / Rate - Report as offensive     Reply Quote
OlivierR

Send message
Joined: 15 Apr 19
Posts: 2
Credit: 889,657
RAC: 1
500 thousand credit badge
Message 68582 - Posted: 24 Apr 2019, 6:56:12 UTC

Application
Milkyway@home N-Body Simulation 1.76
Name
de_nbody_4_16_2017_v174_20k__sim_ex_1_1555431910_354929
State
Computation error
Received
04/24/19 07:45:42
Report deadline
05/06/19 07:45:41
Estimated computation size
48029 GFLOPs
CPU time
00:00:00
Elapsed time
00:00:09
Executable
milkyway_nbody_1.76_x86_64-pc-linux-gnu
ID: 68582 · Rating: 0 · rate: Rate + / Rate - Report as offensive     Reply Quote
Dark Angel

Send message
Joined: 15 Nov 10
Posts: 3
Credit: 2,752,182
RAC: 102
2 million credit badge8 year member badge
Message 68583 - Posted: 24 Apr 2019, 7:30:06 UTC

Just a thought, but if you guys could stop sending out these units till they're sorted, that would be great.
ID: 68583 · Rating: 0 · rate: Rate + / Rate - Report as offensive     Reply Quote
Jake on Space Coast

Send message
Joined: 18 Feb 12
Posts: 8
Credit: 2,730,169
RAC: 6,636
2 million credit badge7 year member badge
Message 68584 - Posted: 24 Apr 2019, 9:38:01 UTC - in response to Message 68583.  

I’ve stopped all new MilkyWay work until this is sorted. Waste of my machine.
ID: 68584 · Rating: 0 · rate: Rate + / Rate - Report as offensive     Reply Quote
Jake Weiss
Volunteer moderator
Project developer
Project tester
Project scientist

Send message
Joined: 25 Feb 13
Posts: 580
Credit: 75,271,794
RAC: 19
50 million credit badge6 year member badgeextraordinary contributions badge
Message 68586 - Posted: 24 Apr 2019, 15:43:45 UTC

We can cancel all of these workunits and abort them on the server side. I'll do that now. The only ones that should be erroring are those which haven't cleared the work queue yet.

Sorry about that.

Best,

Jake
ID: 68586 · Rating: 0 · rate: Rate + / Rate - Report as offensive     Reply Quote
Jake on Space Coast

Send message
Joined: 18 Feb 12
Posts: 8
Credit: 2,730,169
RAC: 6,636
2 million credit badge7 year member badge
Message 68587 - Posted: 24 Apr 2019, 17:30:33 UTC - in response to Message 68586.  

Well I’ll be. Restarted and lo and behold …

Milkyway@Home 1.76 Milkyway@home N-Body Simulation de_nbody_04_23_2019_v176_40k__data__1_1555431910_414159_0 00:22:17 (00:21:37) 4/24/2019 1:21:01 PM 4/24/2019 1:28:56 PM 97.008 Reported: OK 11.52 MB 15.33 MB

5 others and a bunch currently running.
ID: 68587 · Rating: 0 · rate: Rate + / Rate - Report as offensive     Reply Quote
Jake Weiss
Volunteer moderator
Project developer
Project tester
Project scientist

Send message
Joined: 25 Feb 13
Posts: 580
Credit: 75,271,794
RAC: 19
50 million credit badge6 year member badgeextraordinary contributions badge
Message 68588 - Posted: 24 Apr 2019, 17:34:23 UTC

Glad I could help!

Best,
Jake
ID: 68588 · Rating: 0 · rate: Rate + / Rate - Report as offensive     Reply Quote
ProfileTimeRanger

Send message
Joined: 31 Oct 10
Posts: 83
Credit: 36,746,247
RAC: 381
30 million credit badge8 year member badge
Message 68619 - Posted: 29 Apr 2019, 19:00:21 UTC

How does a person opt OUT of the N-body work? There used to be a way to do this in Preferences, but I can no longer find that option.
ID: 68619 · Rating: 0 · rate: Rate + / Rate - Report as offensive     Reply Quote
Eric Mendelsohn
Volunteer moderator
Project administrator
Project developer
Project scientist

Send message
Joined: 21 Aug 18
Posts: 22
Credit: 2,336,425
RAC: 9,555
2 million credit badge1 year member badge
Message 68620 - Posted: 29 Apr 2019, 20:50:11 UTC - in response to Message 68619.  

We recently moved MilkyWay@home onto a new server, so it might just be that the preferences were not transferred over correctly. I'll try to figure out how to get that fixed.
-Eric
ID: 68620 · Rating: 0 · rate: Rate + / Rate - Report as offensive     Reply Quote
Jim1348

Send message
Joined: 9 Jul 17
Posts: 55
Credit: 6,382,244
RAC: 6,636
5 million credit badge2 year member badge
Message 68621 - Posted: 30 Apr 2019, 0:40:45 UTC - in response to Message 68619.  

How does a person opt OUT of the N-body work?

Just de-select "Use CPU". It is the only CPU project they have now.
ID: 68621 · Rating: 0 · rate: Rate + / Rate - Report as offensive     Reply Quote
Link
Avatar

Send message
Joined: 19 Jul 10
Posts: 356
Credit: 16,317,754
RAC: 0
10 million credit badge9 year member badge
Message 68627 - Posted: 30 Apr 2019, 8:09:03 UTC - in response to Message 68621.  

How does a person opt OUT of the N-body work?

Just de-select "Use CPU". It is the only CPU project they have now.

No, "Milkyway@home Separation" has CPU apps as well, see applications page.
.
ID: 68627 · Rating: 0 · rate: Rate + / Rate - Report as offensive     Reply Quote
ProfileKeith Myers
Avatar

Send message
Joined: 24 Jan 11
Posts: 226
Credit: 110,481,792
RAC: 84,631
100 million credit badge8 year member badgeextraordinary contributions badge
Message 68628 - Posted: 30 Apr 2019, 8:20:52 UTC - in response to Message 68620.  
Last modified: 30 Apr 2019, 8:21:40 UTC

Eric, could you drop in on the thread regarding inability to get work from the server when requested for fast hosts. The consensus is that the server "feeder" mechanism isn't set up correctly. One of the Einstein scientists offered some insight on the issue that Einstein experienced and remedied with correct configuration. The thread is here:
https://boinc.berkeley.edu/forum_thread.php?id=12918#91262
ID: 68628 · Rating: 0 · rate: Rate + / Rate - Report as offensive     Reply Quote
Jim1348

Send message
Joined: 9 Jul 17
Posts: 55
Credit: 6,382,244
RAC: 6,636
5 million credit badge2 year member badge
Message 68629 - Posted: 30 Apr 2019, 13:31:54 UTC - in response to Message 68627.  
Last modified: 30 Apr 2019, 13:58:49 UTC

No, "Milkyway@home Separation" has CPU apps as well, see applications page.

You are right. I just attached a new BOINC instance, selected CPU only, and got both N-Body and Separation. It appears that something got lost in the transition.

On the other hand, what happens when you select both CPU and GPU? (That is, do you get only the GPU Separations then?)
I will try that later.
ID: 68629 · Rating: 0 · rate: Rate + / Rate - Report as offensive     Reply Quote
Link
Avatar

Send message
Joined: 19 Jul 10
Posts: 356
Credit: 16,317,754
RAC: 0
10 million credit badge9 year member badge
Message 68631 - Posted: 30 Apr 2019, 15:28:19 UTC - in response to Message 68629.  

On the other hand, what happens when you select both CPU and GPU? (That is, do you get only the GPU Separations then?)

Than you get Separation for GPU and Separation and n-Body mix for the CPU.
.
ID: 68631 · Rating: 0 · rate: Rate + / Rate - Report as offensive     Reply Quote
Eric Mendelsohn
Volunteer moderator
Project administrator
Project developer
Project scientist

Send message
Joined: 21 Aug 18
Posts: 22
Credit: 2,336,425
RAC: 9,555
2 million credit badge1 year member badge
Message 68632 - Posted: 30 Apr 2019, 17:40:17 UTC - in response to Message 68619.  

Do you remember what the option for opting out of N-body units was called? Was it "Run test applications?"? I'm still looking into the website code to resolve this.
-Eric
ID: 68632 · Rating: 0 · rate: Rate + / Rate - Report as offensive     Reply Quote
ProfileTimeRanger

Send message
Joined: 31 Oct 10
Posts: 83
Credit: 36,746,247
RAC: 381
30 million credit badge8 year member badge
Message 68633 - Posted: 30 Apr 2019, 23:07:28 UTC - in response to Message 68632.  
Last modified: 30 Apr 2019, 23:21:39 UTC

Eric,
It was just one of the options offered under the user's project preferences. Perhaps Travis knows?

Do you remember what the option for opting out of N-body units was called? Was it "Run test applications?"? I'm still looking into the website code to resolve this.
-Eric
ID: 68633 · Rating: 0 · rate: Rate + / Rate - Report as offensive     Reply Quote
Link
Avatar

Send message
Joined: 19 Jul 10
Posts: 356
Credit: 16,317,754
RAC: 0
10 million credit badge9 year member badge
Message 68634 - Posted: 1 May 2019, 8:48:42 UTC - in response to Message 68632.  

Do you remember what the option for opting out of N-body units was called? Was it "Run test applications?"? I'm still looking into the website code to resolve this.
-Eric

No, it was something like:
Run only the selected applications:   Milkyway@home Separation: yes/no
                                      Milkyway@home N-Body Simulation: yes/no

If no work for selected applications is available, accept work from other applications?: yes/no

.
ID: 68634 · Rating: 0 · rate: Rate + / Rate - Report as offensive     Reply Quote
1 · 2 · 3 · Next

Message boards : News : New runs of MilkyWay Nbody out

©2019 Astroinformatics Group