Posts by Marek Majewski

1) Message boards : Questions and problems : Percentages of the CPU cores vs. percentage of time (Message 68902)
Posted 11 Apr 2016 by Marek Majewski
Post:
Yes, it is Hyperthreaded. And you have a valid point.

Perhaps I should have used a different example (I am experimenting with various settings)

1. 25% of 8 cores (2 cores) running 80% of the time, vs
2. 100% of 8 cores (8 cores) running 20% of the time

I use a simple math to calculate an index to judge what combination should provide a better performance:

1. 2 x 80% = 160%
2. 8 x 20% = 160%

So, in this example, one would expect even performance in between the two. The difference is in the temps and fan speeds. Combination #2 is much more cooler and fans are much more quieter (and I have a way to easily see graphs for the temps and fans speed via iStat menus; I am on Macs). If, in fact, performance is equal (and this is what I am beginning to question), one should opt for spreading smaller loads over as many cores as one has available. However, I am beginning to notice that it also may be yielding slower (sometimes substantially) performance.
2) Message boards : Questions and problems : BOINC statistics graph time-line extension (Message 68889)
Posted 9 Apr 2016 by Marek Majewski
Post:
FYI: the graph on the test machine in fact grew to the right by one day when I checked it this morning. So I am propagating the change to all of the other boxes now.

Mission accomplished! - thanks again!
3) Message boards : Questions and problems : BOINC statistics graph time-line extension (Message 68886)
Posted 8 Apr 2016 by Marek Majewski
Post:
ALL: thanks for your help. I really appreciate it.

P.S. Backup is happening nightly, all computers, no exceptions. You mean to tell me that some people don't do this? :-)
4) Message boards : Questions and problems : BOINC statistics graph time-line extension (Message 68882)
Posted 8 Apr 2016 by Marek Majewski
Post:
Oh, right - thanks for catching this. I edited the file now. The display of the stat graphs looks the same, but I suppose it will grow every day until it hits the limit, right?
5) Message boards : Questions and problems : BOINC statistics graph time-line extension (Message 68878)
Posted 8 Apr 2016 by Marek Majewski
Post:
Here is my cc_config.xml file, I added <save_stats_days> tag just before <proxy_info> section:

<cc_config>
<log_flags>
<file_xfer>1</file_xfer>
<sched_ops>1</sched_ops>
<task>1</task>
<android_debug>0</android_debug>
<app_msg_receive>0</app_msg_receive>
<app_msg_send>0</app_msg_send>
<async_file_debug>0</async_file_debug>
<benchmark_debug>0</benchmark_debug>
<checkpoint_debug>0</checkpoint_debug>
<coproc_debug>0</coproc_debug>
<cpu_sched>0</cpu_sched>
<cpu_sched_debug>0</cpu_sched_debug>
<cpu_sched_status>0</cpu_sched_status>
<dcf_debug>0</dcf_debug>
<disk_usage_debug>0</disk_usage_debug>
<file_xfer_debug>0</file_xfer_debug>
<gui_rpc_debug>0</gui_rpc_debug>
<heartbeat_debug>0</heartbeat_debug>
<http_debug>0</http_debug>
<http_xfer_debug>0</http_xfer_debug>
<mem_usage_debug>0</mem_usage_debug>
<network_status_debug>0</network_status_debug>
<notice_debug>0</notice_debug>
<poll_debug>0</poll_debug>
<priority_debug>0</priority_debug>
<proxy_debug>0</proxy_debug>
<rr_simulation>0</rr_simulation>
<rrsim_detail>0</rrsim_detail>
<sched_op_debug>0</sched_op_debug>
<scrsave_debug>0</scrsave_debug>
<slot_debug>0</slot_debug>
<state_debug>0</state_debug>
<statefile_debug>0</statefile_debug>
<suspend_debug>0</suspend_debug>
<task_debug>0</task_debug>
<time_debug>0</time_debug>
<trickle_debug>0</trickle_debug>
<unparsed_xml>0</unparsed_xml>
<work_fetch_debug>0</work_fetch_debug>
</log_flags>
<options>
<abort_jobs_on_exit>0</abort_jobs_on_exit>
<allow_multiple_clients>0</allow_multiple_clients>
<allow_remote_gui_rpc>0</allow_remote_gui_rpc>
<client_version_check_url>http://boinc.berkeley.edu/download.php?xml=1</client_version_check_url>
<client_new_version_text></client_new_version_text>
<client_download_url>http://boinc.berkeley.edu/download.php</client_download_url>
<disallow_attach>0</disallow_attach>
<dont_check_file_sizes>0</dont_check_file_sizes>
<dont_contact_ref_site>0</dont_contact_ref_site>
<lower_client_priority>0</lower_client_priority>
<dont_suspend_nci>0</dont_suspend_nci>
<dont_use_vbox>0</dont_use_vbox>
<exit_after_finish>0</exit_after_finish>
<exit_before_start>0</exit_before_start>
<exit_when_idle>0</exit_when_idle>
<fetch_minimal_work>0</fetch_minimal_work>
<fetch_on_update>0</fetch_on_update>
<force_auth>default</force_auth>
<http_1_0>0</http_1_0>
<http_transfer_timeout>300</http_transfer_timeout>
<http_transfer_timeout_bps>10</http_transfer_timeout_bps>
<max_event_log_lines>2000</max_event_log_lines>
<max_file_xfers>8</max_file_xfers>
<max_file_xfers_per_project>2</max_file_xfers_per_project>
<max_stderr_file_size>0</max_stderr_file_size>
<max_stdout_file_size>0</max_stdout_file_size>
<max_tasks_reported>0</max_tasks_reported>
<ncpus>-1</ncpus>
<network_test_url>http://www.google.com/</network_test_url>
<no_alt_platform>0</no_alt_platform>
<no_gpus>0</no_gpus>
<no_info_fetch>0</no_info_fetch>
<no_priority_change>0</no_priority_change>
<os_random_only>0</os_random_only>
<process_priority>-1</process_priority>
<process_priority_special>-1</process_priority_special>
<save_stats_days>365</save_stats_days>
<proxy_info>
<socks_server_name></socks_server_name>
<socks_server_port>80</socks_server_port>
<http_server_name></http_server_name>
<http_server_port>80</http_server_port>
<socks5_user_name></socks5_user_name>
<socks5_user_passwd></socks5_user_passwd>
<http_user_name></http_user_name>
<http_user_passwd></http_user_passwd>
<no_proxy></no_proxy>
</proxy_info>
<rec_half_life_days>10.000000</rec_half_life_days>
<report_results_immediately>0</report_results_immediately>
<run_apps_manually>0</run_apps_manually>
<save_stats_days>30</save_stats_days>
<skip_cpu_benchmarks>0</skip_cpu_benchmarks>
<simple_gui_only>0</simple_gui_only>
<start_delay>0.000000</start_delay>
<stderr_head>0</stderr_head>
<suppress_net_info>0</suppress_net_info>
<unsigned_apps_ok>0</unsigned_apps_ok>
<use_all_gpus>0</use_all_gpus>
<use_certs>0</use_certs>
<use_certs_only>0</use_certs_only>
<vbox_window>0</vbox_window>
</options>
</cc_config>
6) Message boards : Questions and problems : Percentages of the CPU cores vs. percentage of time (Message 68868)
Posted 8 Apr 2016 by Marek Majewski
Post:
It is what I am doing, but the change in efficiency may be obscured by the fluctuation of the efficiency of different work units, I am afraid. I am hoping somebody went this route in a more controlled and scientific manner, and can share their experience.
7) Message boards : Questions and problems : BOINC statistics graph time-line extension (Message 68867)
Posted 8 Apr 2016 by Marek Majewski
Post:
Thanks for the tip. I followed your instructions, I guess I will know tomorrow if the graphs extended by one day.

Thanks again.
8) Message boards : Questions and problems : BOINC statistics graph time-line extension (Message 68864)
Posted 8 Apr 2016 by Marek Majewski
Post:
I did not find the cc_config.xml file in /Library?...

so I ran find from the root, and it did not find the file anywhere on the disk...what gives, you think?
9) Message boards : Questions and problems : Percentages of the CPU cores vs. percentage of time (Message 68861)
Posted 8 Apr 2016 by Marek Majewski
Post:
I am experimenting with various setting for the percentages of the CPUs vs. the percentages of the time I allow BOINC to use.

So far, I am sure of one thing and quite unsure of another.

SURE OF: it is better for cooling purposes, fan speed and noise to use less of more cores, than more of fever cores. I.E.: 50% or 8 cores running 100% of the time will generate more heat, will spin the fan faster (and louder) than 100% of 8 cores running 50% of the time.

UNSURE OF: is one of these approaches better for computational performance over the other?

I appreciate your thoughts.
10) Message boards : Questions and problems : BOINC statistics graph time-line extension (Message 68860)
Posted 8 Apr 2016 by Marek Majewski
Post:
Is it possible to extend the time-line for BOINC statistics from the default 30 days to something longer, like 90 days or even more? I am running MAC OS X 10.11.4 and BOINC manager 7.6.22.

Thanks.



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