trouble using 64-bit ARM

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neocortix_0

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Message 1419 - Posted: 20 May 2020, 19:39:24 UTC

I want to be able to run Amicable on 64-bit ARM machines using debian linux. So far, I have been able to attach the project and start work on a task. But after about 20 hours, the "fraction done" is only about 0.01.

I am doing this test on an EC2 a1.xlarge instance, which has 4 cores and 8 GB RAM. Is it supposed to take such a log time to make this much progress? On a PC using a fairly old core i7, I was able to accumulate 34,181 credit points in much less time.

It does keep 2 CPU cores constantly busy, and the boinc.log gets "checkpointed' messages about once per minute.

Here is the relevant part of the boinc.log (omitting the many "checkpointed" messages).
19-May-2020 23:31:20 [https://sech.me/boinc/Amicable/] Master file download succeeded
19-May-2020 23:31:25 [https://sech.me/boinc/Amicable/] Sending scheduler request: Project initialization.
19-May-2020 23:31:25 [https://sech.me/boinc/Amicable/] Requesting new tasks for CPU
19-May-2020 23:31:30 [Amicable Numbers] Scheduler request completed: got 1 new tasks
19-May-2020 23:31:32 [Amicable Numbers] Started download of amicable_aarch64_v_3_0
19-May-2020 23:31:35 [Amicable Numbers] Finished download of amicable_aarch64_v_3_0
19-May-2020 23:31:35 [Amicable Numbers] Starting task amicable_10_21_601_1589906402.114451_473_1
19-May-2020 23:33:28 [Amicable Numbers] Computation for task amicable_10_21_601_1589906402.114451_473_1 finished
19-May-2020 23:33:30 [Amicable Numbers] Started upload of amicable_10_21_601_1589906402.114451_473_1_r503970519_0
19-May-2020 23:33:33 [Amicable Numbers] Finished upload of amicable_10_21_601_1589906402.114451_473_1_r503970519_0
19-May-2020 23:35:21 [Amicable Numbers] Sending scheduler request: To report completed tasks.
19-May-2020 23:35:21 [Amicable Numbers] Reporting 1 completed tasks
19-May-2020 23:35:21 [Amicable Numbers] Requesting new tasks for CPU
19-May-2020 23:35:26 [Amicable Numbers] Scheduler request completed: got 4 new tasks
19-May-2020 23:35:28 [Amicable Numbers] Starting task amicable_10_21_601_1589906402.114451_423_0


Here is some output from boinccmd --get_tasks
9) -----------
   name: amicable_10_21_601_1589906402.114451_423_0
   WU name: amicable_10_21_601_1589906402.114451_423
   project URL: https://sech.me/boinc/Amicable/
   report deadline: Sun May 24 23:35:25 2020
   ready to report: no
   got server ack: no
   final CPU time: 0.000000
   state: downloaded
   scheduler state: scheduled
   exit_status: 0
   signal: 0
   suspended via GUI: no
   active_task_state: EXECUTING
   app version num: 300
   checkpoint CPU time: 112095.600000
   current CPU time: 112136.400000
   fraction done: 0.010052
   swap size: 2941 MB
   working set size: 2844 MB
   estimated CPU time remaining: 5519389.578834
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neocortix_0

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Message 1420 - Posted: 21 May 2020, 15:05:36 UTC - in response to Message 1419.  

I forgot to mention: I have hundreds (and potentially thousands) of powerful ARM-based machines ready to work, if your project has a working Arm build.
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Message boards : Getting started : trouble using 64-bit ARM


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