Result '(result)': memory usage '(usage)' exceeds limit '(limit)'

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Contents 1 General 2 Version Information 3 Example Log 3.1 Result '(result)': memory usage '(memory-use)' exceeds limit 3.1.1 Line-By-Line Explanation 3.1.2 Message Log: Memory Usage Exceeds Limit 3.1.3 Line-By-Line Explanation 4 Other Related Messages 5 Developer Information

[edit] General

Message Type: Error Message

This Message informs the Participant that the memory usage for the Result has exceeded a predetermined memory limit. This memory limit is established by the Project when the Work Unit is created (see "Work Unit Template File" for details).

There does not appear to be any adverse side effects to the validity of the result, apart from the message log getting very full due to the persistent logging of the error every second. However, it is possible for the BOINC Daemon to terminate this Result/Work Unit when the error occurs.

[edit] Version Information

• Observed in version 4.43 on the Linux platform.

[edit] Example Log

[edit] Result '(result)': memory usage '(memory-use)' exceeds limit

2005-06-11 01:03:53 [BOINC alpha test] Starting result wu_1114807129_1095_9 using setiathome
                                       version 4.02
2005-06-11 01:03:54 [BOINC alpha test] result wu_1114807129_1095_9: memory usage 45080576.000000
                                       exceeds limit 33554422.000000
2005-06-11 01:03:55 [BOINC alpha test] result wu_1114807129_1095_9: memory usage 45080576.000000
                                       exceeds limit 33554422.000000
2005-06-11 01:03:56 [BOINC alpha test] result wu_1114807129_1095_9: memory usage 45080576.000000
                                       exceeds limit 33554422.000000
-+-+/\/\/\/\/\ Log Break /\/\/\/\/\-+-+- 
2005-06-12 00:29:07 [BOINC alpha test] result wu_1114807129_1095_9: memory usage 45080576.000000
                                       exceeds limit 33554422.000000
2005-06-12 00:29:08 [BOINC alpha test] result wu_1114807129_1095_9: memory usage 45080576.000000
                                       exceeds limit 33554422.000000
2005-06-12 00:29:09 [BOINC alpha test] result wu_1114807129_1095_9: memory usage 45080576.000000
                                       exceeds limit 33554422.000000
2005-06-12 00:29:10 [BOINC alpha test] Computation for result wu_1114807129_1095_9 finished

Line-By-Line Explanation

• Starting result '(result)' using '(science application)' version '(version)'

The result is started.

• Result '(result)': memory usage '(usage)' exceeds limit '(limit)'

This message indicates that the memory allocated to the computation of the Result has been exceeded. Both the memory usage and the limit are displayed.

The message is logged multiple times until such time as the result completes successfully, aborts due to an error, or the BOINC Client Software is restarted.

• Computation for result '(result)' finished

The result is completed successfully.

Message Log: Memory Usage Exceeds Limit

(1) 2005-07-08 08:39:06 [---                ] request_reschedule_cpus: process exited
(2) 2005-07-08 08:39:06 [---                ] schedule_cpus: must schedule
(3) 2005-07-08 08:39:06 [---                ] earliest deadline: 1121186061.000000 
                                              2534af4f-3c14-4931-be79-831b5cf910f4_0
(4) 2005-07-08 08:39:06 [---                ] earliest deadline: 1122012563.000000
                                              16ja05ab.11083.7584.234634.133_3
(5) 2005-07-08 08:39:06 [SZTAKI Desktop Grid] Restarting result 
                                              2534af4f-3c14-4931-be79-831b5cf910f4_0 
                                              using search version 4.05
(6) 2005-07-08 08:39:08 [SZTAKI Desktop Grid] result 2534af4f-3c14-4931-be79-831b5cf910f4_0:
                                              memory usage 20  377600.000000 
                                              exceeds limit 10000000.000000

Line-By-Line Explanation

1. Request_reschedule_cpus: process exited
   • A Process exited so we need to reschedule the CPU(s).
2. schedule_cpus: must schedule
   • Time to schedule the CPU(s).
3. Earliest deadline: '(result)'
   • This Result has the earliest deadline.
4. Earliest deadline: '(result)'
   • This Result has the earliest deadline.
5. Restarting result '(result)' using '(science-application)' version '(version)'
   • Shows which Result we are starting and details on the Science Application used with it.
6. Result '(result)': memory usage '(usage)' exceeds limit '(limit)'
   • The Result did not start due to excessive memory usage.

[edit] Other Related Messages

• None.

[edit] Developer Information