Compute error, now cant get WU.


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Questions and Answers : Macintosh : Compute error, now cant get WU.

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Profile Victor Wood
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Message 526395 - Posted: 4 Mar 2007, 18:04:56 UTC
Last modified: 4 Mar 2007, 18:14:20 UTC

Since yesterday all my WU have been "Compute error" . Today I closed down boinc and rebooted, now it tells me Im over quota. whats up?

I have now reset the project, and as no work is available, suspended it. Ideas?

"Sun 4 Mar 18:58:32 2007|SETI@home|Sending scheduler request: Requested by user
Sun 4 Mar 18:58:32 2007|SETI@home|Requesting 154875 seconds of new work, and reporting 7 completed tasks
Sun 4 Mar 18:58:42 2007|SETI@home|Scheduler RPC succeeded [server version 509]
Sun 4 Mar 18:58:42 2007|SETI@home|Message from server: No work sent
Sun 4 Mar 18:58:42 2007|SETI@home|Message from server: (reached daily quota of 40 results)
Sun 4 Mar 18:58:42 2007|SETI@home|Deferring communication for 14 hr 27 min 29 sec
Sun 4 Mar 18:58:42 2007|SETI@home|Reason: requested by project"

A typical result shows

<core_client_version>5.8.15</core_client_version>
<![CDATA[
<message>
Can't create shared memory: system shmget
</message>
]]>

The only change I have made to my system was about 2 days ago when I started running the Mac beta Climateprediction.net boinc module. Before I had no problem. Related?
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Odysseus
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Message 526635 - Posted: 5 Mar 2007, 0:42:40 UTC - in response to Message 526395.
Last modified: 5 Mar 2007, 0:44:16 UTC

Since yesterday all my WU have been "Compute error" . Today I closed down boinc and rebooted, now it tells me Im over quota. whats up?

Your hosts’s quota has been reduced because of the erroneous results it submitted. Don’t worry; each successful result returned will double the quota until it’s back up to the default level.

A typical result shows
[…] Can't create shared memory: system shmget […]
The only change I have made to my system was about 2 days ago when I started running the Mac beta Climateprediction.net boinc module. Before I had no problem. Related?

Slightly. In brief, Apple’s default system configuration is stingy with shared memory, even on multiple-CPU systems that are shipped with ample RAM. BOINC needs a separate block of shared memory for exchanging data between the client and each instance of a science app (one for each folder in the slots directory). Adding another project probably pushed you over the limit. For a more detailed discussion—and a remedy—see Configuring Shared Memory on Mac OS X from the Pirates@home website.
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Profile Victor Wood
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Message 526649 - Posted: 5 Mar 2007, 1:21:57 UTC - in response to Message 526635.

Thanks for that.

I have applied the suggested fix and I will what happens when eventually I can get a new WU.

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Profile Victor Wood
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Message 526790 - Posted: 5 Mar 2007, 15:24:10 UTC - in response to Message 526649.

Looks ok again now.
Thanks
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challenger
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Message 531171 - Posted: 14 Mar 2007, 7:35:00 UTC - in response to Message 526635.

directory). Adding another project probably pushed you over the limit. For a more detailed discussion—and a remedy—see Configuring Shared Memory on Mac OS X from the Pirates@home website.[/quote]

I use only one project (seti) an this doesn´t help anything on my quad G5 Mac. I raised zhe Memory up to
8192 but always get

<core_client_version>5.8.15</core_client_version>
<![CDATA[
<message>
Can't create shared memory: system shmget
</message>
]]>

But my MacBook Pro works again after the change to 4096 but not my PowerMac :-(

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challenger
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Message 533119 - Posted: 18 Mar 2007, 11:22:41 UTC - in response to Message 531171.

Now i got only client error on all Mac´s

<core_client_version>5.8.15</core_client_version>
Can't create shared memory: system shmget

without any change !

Anybody here with an idea ?

Patric


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Questions and Answers : Macintosh : Compute error, now cant get WU.

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