Posts by Enno Ruijters

1) Message boards : Number crunching : Report Problems with Rosetta Version 5.16 II (Message 17420) Posted 31 May 2006 by Enno Ruijters Post: My linux machine got its first error: result 22071081: Wed 31 May 2006 02:42:39 PM CEST\|rosetta@home\|Unrecoverable error for result JUMP_RELAX_LONGRANGEPAIR_ANTIPARALLEL_t285__SAVE_ALL_OUT_548_29690_0 (process exited with code 131 (0x83)) I'm using boinc version 5.4.9 on x86_64 linux 2.6.15. Result ID 22071081 Name JUMP_RELAX_LONGRANGEPAIR_ANTIPARALLEL_t285__SAVE_ALL_OUT_548_29690_0 Workunit 18520787 Created 30 May 2006 3:35:03 UTC Sent 30 May 2006 5:48:44 UTC Received 31 May 2006 12:47:19 UTC Server state Over Outcome Client error Client state Computing Exit status 131 (0x83) Computer ID 70238 Report deadline 6 Jun 2006 5:48:44 UTC CPU time 6945.15 stderr out <core_client_version>5.4.9</core_client_version> <message> process exited with code 131 (0x83) </message> <stderr_txt> # random seed: 2797211 # cpu_run_time_pref: 10800 No heartbeat from core client for 31 sec - exiting SIGSEGV: segmentation violationStack trace (19 frames): [0x8836a6b] [0x884f74c] [0xffffe500] [0x860e7a9] [0x85ff1f8] [0x809364c] [0x860ff95] [0x8610bb0] [0x87dca0f] [0x8728e50] [0x872a6bb] [0x80a3a75] [0x85c3a13] [0x842093e] [0x85f1ffb] [0x8496132] [0x8498c8f] [0x88aec34] [0x8048111] Exiting... </stderr_txt> Validate state Invalid Claimed credit 12.3736072419708 Granted credit 0 application version 5.16
2) Message boards : Rosetta@home Science : ran2 verus ran3 (Message 6147) Posted 13 Dec 2005 by Enno Ruijters Post: I compiled the ran2 on my VC6++ and the outputs indeed don't seem to change when using different seeds according to the main() in the file in your zip. I think this is because the idum2 variable in the ran2 function is set during the initialization with the negative value, and then becomes independant from the seed. This would mean that for the outputs to change you'd have to get a lot of outputs so that the array is reset (iv[j] = *idum;). So I'm guessing you're supposed to use a random negative variable as the seed (to initialize it) and then don't touch it anymore. That seemed to work for me. Ran3 looks like it does that even worse (after the seeding with -1, any change won't matter). So you might want to change that one, too.