Computation error

treninoburu
treninoburu
Joined: 19 Jan 21
Posts: 1
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Topic 224974

Hi,

I have 11 computation errors, an example:

https://einsteinathome.org/it-it/task/1076298495

mikey
mikey
Joined: 22 Jan 05
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treninoburu wrote: Hi, I

treninoburu wrote:

Hi,

I have 11 computation errors, an example:

https://einsteinathome.org/it-it/task/1076298495

 

Your pc's are hidden so it's hard to know for sure but my guess is you are running the GW tasks on a gpu with less than 4gb of onboard memory.

Richie
Richie
Joined: 7 Mar 14
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2021-02-22 23:50:11.1774

2021-02-22 23:50:11.1774 (5435) [normal]: OpenCL Device used for Search/Recalc and/or semi coherent step: 'GeForce GTX 1060 3GB (Platform: NVIDIA CUDA, global memory: 3018 MiB)'
archae86
archae86
Joined: 6 Dec 05
Posts: 3146
Credit: 7060314931
RAC: 1148405

Each of the eleven tasks

Each of the eleven tasks currently showed in the error list for that machine include this key string:

CL_MEM_OBJECT_ALLOCATION_FAILURE

That is what people have been consistently seeing when a card tries to run a GW task that needs more VRAM than it has.

You can compute what we have been calling here the DF or Difference Frequency by subtracting the first (base) frequency field in the task name from the second.  For example, the task with the name:

h1_0611.05_O2C02Cl4In0__O2MDFS3a_Spotlight_611.80Hz_738_0
 

has a DF of .75, which is high.  At a quick glance, tasks for which your machine returns a successful result appear to have generally lower DF values than do your failing ones.  I think it is still true that lower DF tasks tend to have lower VRAM memory needs.

If you wish to avoid this problem, you may de-select Gravity Wave GPU tasks in your preferences.  Otherwise you can just take your chances on what fraction of the tasks sent to you will actually be within your capacity to run.

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