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metasequoia
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Tasks per processor core
I just purchased a new computer with a i7-4790 processor. After installing BOINC I noticed that 8 tasks were running for the first 24 hours and now it is down to 4. My question is: do more tasks/day get completed with more tasks running or do fewer tasks get completed faster so there is no net gain? If more simultaneous tasks get completed faster is there a setting to make this happen?
Thank you
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Falconet
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Re: Tasks per processor core
Did you disable Hyperthreading?
The workunits you have done, any errors?

Can you post the first 50 lines of the event log?
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- AMD Ryzen 5 1600AF 6C/12T 3.2 GHz - 85W
- AMD Ryzen 5 2500U 4C/8T 2.0 GHz - 28W
- AMD Ryzen 7 7730U 8C/16T 3.0 GHz
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[Edit 1 times, last edit by Falconet at Sep 14, 2014 5:42:38 PM]
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metasequoia
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Re: Tasks per processor core
Thank you for your time; here are the first 50 lines of the event log:

9/13/2014 11:08:15 PM | | Starting BOINC client version 7.2.47 for windows_x86_64
9/13/2014 11:08:15 PM | | log flags: file_xfer, sched_ops, task
9/13/2014 11:08:15 PM | | Libraries: libcurl/7.25.0 OpenSSL/1.0.1 zlib/1.2.6
9/13/2014 11:08:15 PM | | Data directory: C:\ProgramData\BOINC
9/13/2014 11:08:15 PM | | Running under account Doug
9/13/2014 11:08:15 PM | | CUDA: NVIDIA GPU 0: GeForce GT 720 (driver version 332.35, CUDA version 6.0, compute capability 3.5, 1024MB, 889MB available, 743 GFLOPS peak)
9/13/2014 11:08:15 PM | | Host name: DellPC
9/13/2014 11:08:15 PM | | Processor: 4 GenuineIntel Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz [Family 6 Model 60 Stepping 3]
9/13/2014 11:08:15 PM | | Processor features: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss htt tm pni ssse3 fma cx16 sse4_1 sse4_2 movebe popcnt aes nx lm vmx smx tm2 pbe
9/13/2014 11:08:15 PM | | OS: Microsoft Windows 7: Professional x64 Edition, Service Pack 1, (06.01.7601.00)
9/13/2014 11:08:15 PM | | Memory: 7.95 GB physical, 15.90 GB virtual
9/13/2014 11:08:15 PM | | Disk: 907.74 GB total, 646.62 GB free
9/13/2014 11:08:15 PM | | Local time is UTC -7 hours
9/13/2014 11:08:15 PM | World Community Grid | URL http://www.worldcommunitygrid.org/; Computer ID 3148767; resource share 100
9/13/2014 11:08:15 PM | World Community Grid | General prefs: from World Community Grid (last modified 29-Apr-2007 11:39:41)
9/13/2014 11:08:15 PM | World Community Grid | Host location: none
9/13/2014 11:08:15 PM | World Community Grid | General prefs: using your defaults
9/13/2014 11:08:15 PM | | Reading preferences override file
9/13/2014 11:08:15 PM | | Preferences:
9/13/2014 11:08:15 PM | | max memory usage when active: 6107.41MB
9/13/2014 11:08:15 PM | | max memory usage when idle: 6107.41MB
9/13/2014 11:08:15 PM | | max disk usage: 100.00GB
9/13/2014 11:08:15 PM | | (to change preferences, visit a project web site or select Preferences in the Manager)
9/13/2014 11:08:15 PM | | Not using a proxy
9/13/2014 11:25:52 PM | World Community Grid | Computation for task MCM1_0007531_7983_0 finished
9/13/2014 11:25:54 PM | World Community Grid | Started upload of MCM1_0007531_7983_0_0
9/13/2014 11:26:10 PM | World Community Grid | Finished upload of MCM1_0007531_7983_0_0
9/13/2014 11:44:28 PM | World Community Grid | Sending scheduler request: To report completed tasks.
9/13/2014 11:44:28 PM | World Community Grid | Reporting 2 completed tasks
9/13/2014 11:44:28 PM | World Community Grid | Not requesting tasks: don't need
9/13/2014 11:44:36 PM | World Community Grid | Scheduler request completed
9/14/2014 1:27:27 AM | World Community Grid | Computation for task MCM1_0007531_9071_1 finished
9/14/2014 1:27:29 AM | World Community Grid | Started upload of MCM1_0007531_9071_1_0
9/14/2014 1:27:42 AM | World Community Grid | Finished upload of MCM1_0007531_9071_1_0
9/14/2014 1:41:09 AM | World Community Grid | Computation for task MCM1_0007531_8063_0 finished
9/14/2014 1:41:11 AM | World Community Grid | Started upload of MCM1_0007531_8063_0_0
9/14/2014 1:41:29 AM | World Community Grid | Finished upload of MCM1_0007531_8063_0_0
9/14/2014 1:45:23 AM | World Community Grid | Computation for task MCM1_0007531_9107_1 finished
9/14/2014 1:45:25 AM | World Community Grid | Started upload of MCM1_0007531_9107_1_0
9/14/2014 1:45:45 AM | World Community Grid | Finished upload of MCM1_0007531_9107_1_0
9/14/2014 1:56:12 AM | World Community Grid | Computation for task MCM1_0007531_9114_0 finished
9/14/2014 1:56:12 AM | World Community Grid | Starting task MCM1_0007531_7901_0
9/14/2014 1:56:14 AM | World Community Grid | Started upload of MCM1_0007531_9114_0_0
9/14/2014 1:56:33 AM | World Community Grid | Finished upload of MCM1_0007531_9114_0_0
9/14/2014 2:28:02 AM | World Community Grid | Sending scheduler request: To report completed tasks.
9/14/2014 2:28:02 AM | World Community Grid | Reporting 4 completed tasks
9/14/2014 2:28:02 AM | World Community Grid | Not requesting tasks: don't need
9/14/2014 2:28:18 AM | World Community Grid | Scheduler request completed
9/14/2014 3:54:14 AM | World Community Grid | Computation for task MCM1_0007531_9077_1 finished
9/14/2014 3:54:14 AM | World Community Grid | Starting task MCM1_0007531_9048_1
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ryan222h
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Re: Tasks per processor core
My question is: do more tasks/day get completed with more tasks running or do fewer tasks get completed faster so there is no net gain? If more simultaneous tasks get completed faster is there a setting to make this happen?
Thank you


Ideally you'll want all 8 tasks running for the most number of work units completed. Selecting only 4 cores active will speed up the individual work unit run times by around 30%, but less total work will get done because you have half the core count.

Make sure hyperthreading is enabled (you can verify by doing a quick ctrl-alt-del select task manager and go to performance tab you should see 8 graphs for cpu usage.

In Boinc tools, computing preferences, processor usage tab, select "on multiprocessor systems, use (100%) of the processors, and use at most (100%) of cpu time. This will ensure your CPU is doing the most work possible.
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metasequoia
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Re: Tasks per processor core
Thank you for the help. The performance monitor tab only shows 4 graphs so I got into BIOS setup and was surprised to see that hyperthreading IS enabled. Any suggestions?
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metasequoia
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Re: Tasks per processor core
OK! The computer is running on all 8 'cylinders' now. I had to get into msconfig and uncheck the box for the number of processors.
Thanks, again
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