Error: negative FLOPs left


Advanced search

Message boards : Number crunching : Error: negative FLOPs left

Sort
Author Message
Riil

Joined: Mar 16 10
Posts: 2
ID: 27013
Credit: 9,339
RAC: 0
Message 5832 - Posted 23 Mar 2010 18:00:45 UTC

Hi.
Im a newbie here, so i'm sorry if there was that kind of post in here.
It happend with one of mine recent WU.
Its finnished in 100 % but still in progress.
It shows that info every 1 minute:

2010-03-23 18:52:53 Docking [error] 1k1m_52_mod0013btrypsin_1857_325698_0: negative FLOPs left -32125022429552.352000
2010-03-23 18:53:53 Docking [error] 1k1m_52_mod0013btrypsin_1857_325698_0: negative FLOPs left -32125022429552.352000
2010-03-23 18:54:53 Docking [error] 1k1m_52_mod0013btrypsin_1857_325698_0: negative FLOPs left -32125022429552.352000
2010-03-23 18:55:53 Docking [error] 1k1m_52_mod0013btrypsin_1857_325698_0: negative FLOPs left -32125022429552.352000
2010-03-23 18:56:53 Docking [error] 1k1m_52_mod0013btrypsin_1857_325698_0: negative FLOPs left -32125022429552.352000
2010-03-23 18:57:54 Docking [error] 1k1m_52_mod0013btrypsin_1857_325698_0: negative FLOPs left -32125022429552.352000

What might be the problem ? Should i abort that WU ?

Thx in advance

Riil

ID: 5832 | Rating: 0 | rate: Rate + / Rate - Report as offensive
Ananas

Joined: Aug 29 09
Posts: 56
ID: 17736
Credit: 2,500,425
RAC: 0
Message 5846 - Posted 25 Mar 2010 17:58:22 UTC - in response to Message ID 5832 .
Last modified: 25 Mar 2010 18:01:01 UTC

...
It shows that info every 1 minute:

2010-03-23 18:52:53 Docking [error] 1k1m_52_mod0013btrypsin_1857_325698_0: negative FLOPs left -32125022429552.352000
...


It must be some weird BOINC bug, I have seen reports about it in several other projects.

The program part that generates this message seems to be the round robin simulation of the client side scheduler.

It might be fixed in later BOINC versions, from what I can see the bug has been "introduced" with core client 6.5

The cache size (too large / too small) might play a role.


p.s.: A weird duration correction factor (negative?) for that host in any of the active projects can probably cause that too (just a guess).
ID: 5846 | Rating: 0 | rate: Rate + / Rate - Report as offensive
Riil

Joined: Mar 16 10
Posts: 2
ID: 27013
Credit: 9,339
RAC: 0
Message 5876 - Posted 28 Mar 2010 22:17:16 UTC - in response to Message ID 5846 .

Thx for reply. That WU was aborted.
Just got same kind of information while crunching MilkyWay@home.
I'm gettin' it during CPU work only, after many WUs and hours done.
May it be cause overheating too ???

ID: 5876 | Rating: 0 | rate: Rate + / Rate - Report as offensive
Ananas

Joined: Aug 29 09
Posts: 56
ID: 17736
Credit: 2,500,425
RAC: 0
Message 5877 - Posted 28 Mar 2010 22:57:13 UTC - in response to Message ID 5876 .

...
May it be cause overheating too ???


I doubt that there is anything wrong with your computer, it is a software problem.
ID: 5877 | Rating: 0 | rate: Rate + / Rate - Report as offensive

Message boards : Number crunching : Error: negative FLOPs left

Database Error
: The MySQL server is running with the --read-only option so it cannot execute this statement 
array(3) {
  [0]=>
  array(7) {
    ["file"]=>
    string(47) "/boinc/projects/docking/html_v2/inc/db_conn.inc"
    ["line"]=>
    int(97)
    ["function"]=>
    string(8) "do_query"
    ["class"]=>
    string(6) "DbConn"
    ["object"]=>
    object(DbConn)#9 (2) {
      ["db_conn"]=>
      resource(60) of type (mysql link persistent)
      ["db_name"]=>
      string(7) "docking"
    }
    ["type"]=>
    string(2) "->"
    ["args"]=>
    array(1) {
      [0]=>
      &string(51) "update DBNAME.thread set views=views+1 where id=528"
    }
  }
  [1]=>
  array(7) {
    ["file"]=>
    string(48) "/boinc/projects/docking/html_v2/inc/forum_db.inc"
    ["line"]=>
    int(60)
    ["function"]=>
    string(6) "update"
    ["class"]=>
    string(6) "DbConn"
    ["object"]=>
    object(DbConn)#9 (2) {
      ["db_conn"]=>
      resource(60) of type (mysql link persistent)
      ["db_name"]=>
      string(7) "docking"
    }
    ["type"]=>
    string(2) "->"
    ["args"]=>
    array(3) {
      [0]=>
      object(BoincThread)#3 (16) {
        ["id"]=>
        string(3) "528"
        ["forum"]=>
        string(1) "2"
        ["owner"]=>
        string(5) "27013"
        ["status"]=>
        string(1) "0"
        ["title"]=>
        string(26) "Error: negative FLOPs left"
        ["timestamp"]=>
        string(10) "1269817033"
        ["views"]=>
        string(2) "94"
        ["replies"]=>
        string(1) "3"
        ["activity"]=>
        string(22) "1.5359081556412002e-75"
        ["sufferers"]=>
        string(1) "0"
        ["score"]=>
        string(1) "0"
        ["votes"]=>
        string(1) "0"
        ["create_time"]=>
        string(10) "1269367245"
        ["hidden"]=>
        string(1) "0"
        ["sticky"]=>
        string(1) "0"
        ["locked"]=>
        string(1) "0"
      }
      [1]=>
      &string(6) "thread"
      [2]=>
      &string(13) "views=views+1"
    }
  }
  [2]=>
  array(7) {
    ["file"]=>
    string(63) "/boinc/projects/docking/html_v2/user/community/forum/thread.php"
    ["line"]=>
    int(184)
    ["function"]=>
    string(6) "update"
    ["class"]=>
    string(11) "BoincThread"
    ["object"]=>
    object(BoincThread)#3 (16) {
      ["id"]=>
      string(3) "528"
      ["forum"]=>
      string(1) "2"
      ["owner"]=>
      string(5) "27013"
      ["status"]=>
      string(1) "0"
      ["title"]=>
      string(26) "Error: negative FLOPs left"
      ["timestamp"]=>
      string(10) "1269817033"
      ["views"]=>
      string(2) "94"
      ["replies"]=>
      string(1) "3"
      ["activity"]=>
      string(22) "1.5359081556412002e-75"
      ["sufferers"]=>
      string(1) "0"
      ["score"]=>
      string(1) "0"
      ["votes"]=>
      string(1) "0"
      ["create_time"]=>
      string(10) "1269367245"
      ["hidden"]=>
      string(1) "0"
      ["sticky"]=>
      string(1) "0"
      ["locked"]=>
      string(1) "0"
    }
    ["type"]=>
    string(2) "->"
    ["args"]=>
    array(1) {
      [0]=>
      &string(13) "views=views+1"
    }
  }
}
query: update docking.thread set views=views+1 where id=528