I posted this over at S@H but as pointed out to me this is the best place to mention BOINC problems.

When I set the "network usage allowed" times they don't seem to work with certain combinations.

In boingmgr -> advanced -> preferences and click on the network usage tab (also does this for processor usage). Select time examples as below, click the okay button. Reselect and they have changed.

06:20/22:20 becomes 06:19/22:19.
06:35/22:35 becomes 06:34/22:34.
06:50/22:50 becomes 06:49/22:49.

The times are stored in decimal, when they are converted back to a time they are not shown correctly.

06:20 is stored as 6.333333 and when it converts from decimal back to a time it stuffs them up (ie .333333 x 60 mins = 19.999998) so it shows as 06:19.

See global_pref_override.xml exerpt below. I have seen this using BOINC versions 5.10.30 and 5.10.45 under Windows.

<global_preferences>
<run_on_batteries>0</run_on_batteries>
<run_if_user_active>0</run_if_user_active>
<idle_time_to_run>3.000000</idle_time_to_run>
<start_hour>0.000000</start_hour>
<end_hour>0.000000</end_hour>
<net_start_hour>6.333333</net_start_hour>
<net_end_hour>22.333333</net_end_hour>

Hoping someone will pick this up and raise a trac.

Thanks

To confirm seen this on windows with several 5.10.xx releases and just tested on 6.1.12 it does same. It's only effecting the number displayed. The stored value is still correct, until any other value is changed, at which time it saves the 6:19 equivalent.... 6.316668

Yes it could compound the problem if you just clicked okay after it had read back the prefs as 06:19, ad infinitum...

I have crunch3r's BOINC 6.1.0 on one machine and it does exactly the same.

Also I can confirm that it does use 06:19 as the time to resume network traffic as seen from the log entries:

8/04/2008 4:56:10 AM|Einstein@Home|Starting task h1_0923.55_S5R3__374_S5R3b_0 using einstein_S5R3 version 436
8/04/2008 6:19:01 AM||Resuming network activity
8/04/2008 6:19:02 AM|Einstein@Home|Started upload of h1_0923.55_S5R3__477_S5R3b_2_0
8/04/2008 6:19:02 AM|Einstein@Home|Started upload of h1_0923.55_S5R3__375_S5R3b_0_0

Added as ticket [trac]#613[/trac].

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Added as ticket [trac]#613[/trac].

Thanks Jord

Not a whole lot that can be done about it though. There are numbers that cannot be represented exactly in binary. This is almost certainly pure rounding problems.

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BOINC WIKI

Not a whole lot that can be done about it though. There are numbers that cannot be represented exactly in binary. This is almost certainly pure rounding problems.

Store it in seconds, like every other BOINC time?