Error with Project: 2176 (Run 0, Clone 91, Gen 4)

[Mactin]

One of my clients has encountered a rarely seen error by me:
Quit 101 - Fatal error: NaN detected: (ener[13])
Simulation instability has been encountered. The run has entered a state from which no further progress can be made.
This may be the correct result of the simulation, however if you often see other project units terminating early like this too, you may wish to check the stability of your computer (issues such as high temperature, overclocking, etc.).

Code: Select all

--- Opening Log file [June 23 10:48:01] 


# Windows Console Edition #####################################################
###############################################################################

                       Folding@Home Client Version 5.04beta

                          http://folding.stanford.edu

###############################################################################
###############################################################################

Launch directory: C:\Program Files\Folding@Home\folding2
Service: C:\Program Files\Folding@Home\folding2\FAH504-Console.exe
Arguments: -svcstart 

Launched as a service.
Entered C:\Program Files\Folding@Home\folding2 to do work.

[10:48:01] - Ask before connecting: No
[10:48:01] - User name: Mactin (Team 57391)
[10:48:01] - User ID: 707BF8753A1DA7F7
[10:48:01] - Machine ID: 2
[10:48:01] 
[10:48:01] Loaded queue successfully.
[10:48:01] + Benchmarking ...
[10:48:04] 
[10:48:04] + Processing work unit
[10:48:04] Core required: FahCore_78.exe
[10:48:04] Core found.
[10:48:04] Working on Unit 02 [June 23 10:48:04]
[10:48:04] + Working ...
[10:48:14] 
[10:48:14] *------------------------------*
[10:48:14] Folding@Home Gromacs Core
[10:48:14] Version 1.90 (March 8, 2006)
[10:48:14] 
[10:48:14] Preparing to commence simulation
[10:48:14] - Looking at optimizations...
[10:48:14] - Files status OK
[10:48:29] - Expanded 2449558 -> 12512233 (decompressed 510.7 percent)
[10:48:35] 
[10:48:35] Project: 2176 (Run 0, Clone 91, Gen 4)
[10:48:35] 
[10:48:37] Assembly optimizations on if available.
[10:48:37] Entering M.D.
[10:48:58] (Starting from checkpoint)
[10:48:59] Protein: p2176_halr-wt, CN inhib, NADP+ in water
[10:48:59] 
[10:48:59] Writing local files
[10:48:59] Completed 74000 out of 100000 steps  (74)
[10:49:14] Extra SSE boost OK.
[11:15:37] Writing local files
[11:15:37] Completed 75000 out of 100000 steps  (75)
[11:41:41] Writing local files
[11:41:41] Completed 76000 out of 100000 steps  (76)
[12:08:52] Writing local files
[12:08:52] Completed 77000 out of 100000 steps  (77)
[12:37:56] Writing local files
[12:37:56] Completed 78000 out of 100000 steps  (78)
[13:06:11] Writing local files
[13:06:11] Completed 79000 out of 100000 steps  (79)
[13:35:11] Writing local files
[13:35:11] Completed 80000 out of 100000 steps  (80)
[14:02:09] Writing local files
[14:02:09] Completed 81000 out of 100000 steps  (81)
[14:30:17] Writing local files
[14:30:17] Completed 82000 out of 100000 steps  (82)
[14:58:10] Writing local files
[14:58:10] Completed 83000 out of 100000 steps  (83)
[15:28:45] Writing local files
[15:28:45] Completed 84000 out of 100000 steps  (84)
[15:41:37] Quit 101 - Fatal error: NaN detected: (ener[13])
[15:41:37] 
[15:41:37] Simulation instability has been encountered. The run has entered a
[15:41:37]   state from which no further progress can be made.
[15:41:37] This may be the correct result of the simulation, however if you
[15:41:37]   often see other project units terminating early like this
[15:41:37]   too, you may wish to check the stability of your computer (issues
[15:41:37]   such as high temperature, overclocking, etc.).
[15:41:37] Going to send back what have done.
[15:41:37] logfile size: 34180
[15:41:37] - Writing 34743 bytes of core data to disk...
[15:41:37] Done: 34231 -> 5292 (compressed to 15.4 percent)
[15:41:37]   ... Done.
[15:41:37] 
[15:41:37] Folding@home Core Shutdown: EARLY_UNIT_END
[15:41:41] CoreStatus = 72 (114)
[15:41:41] Sending work to server


[15:41:41] + Attempting to send results
[15:41:42] + Results successfully sent
[15:41:42] Thank you for your contribution to Folding@Home.
[15:41:46] - Preparing to get new work unit...

369 points credited, no problems with points.
Running two 5.04 clients on a T7250 Dell laptop (all stock, no OC or anything fancy, runs about 14 hours a day).

[bruce]

As the message suggests, NaN errors may indicate heat or overclocking problems, but they can also be inherent in that particular WU. In this case, you did receive partial credit and the WU has been assigned to someone else. If they get the same error, we can conclude it's the WU. If they complete it successfully, we can conclude it's something in your machine. Check back in a few days and we can see what else has happened to that WU.

Hi Mactin (team 57391),
Your WU (P2176 R0 C91 G4) was added to the stats database on 2008-06-23 09:23:57 for 369.25 points of credit.