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svn path=/trunk/boinc/; revision=3768
This commit is contained in:
Daniel Hsu 2004-07-03 18:50:20 +00:00
parent 767dccd055
commit bfe22a571f
1 changed files with 6 additions and 5 deletions
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11
doc/client_sched.php
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@ -29,7 +29,7 @@ in a typical period of a day or two,
should be approximately the same as the ratio of should be approximately the same as the ratio of
the user-specified resource shares. the user-specified resource shares.
If a process has no work for some period, If a process has no work for some period,
it does no accumulate a 'debt' of work. it does not accumulate a 'debt' of work.
<li> <li>
<b>Satisfy result deadlines if possible.</b> <b>Satisfy result deadlines if possible.</b>
@ -92,7 +92,8 @@ This algorithm is run:
<ul> <ul>
<li> Whenever a CPU is free <li> Whenever a CPU is free
<li> Whenever a new result arrives (via scheduler RPC) <li> Whenever a new result arrives (via scheduler RPC)
<li> Whenever it hasn't run for MV seconds <li> Whenever it hasn't run for MV seconds, for some scheduling period
MV
</ul> </ul>
<p> <p>
@ -136,7 +137,7 @@ ready-to-compute result.
<pre> <pre>
data structures: data structures:
ACTIVE_TASK: ACTIVE_TASK:
double period_start_cpu_time double cpu_time_at_last_sched
double current_cpu_time double current_cpu_time
scheduler_state: scheduler_state:
PREEMPTED PREEMPTED
@ -155,7 +156,7 @@ foreach project P
total_work_done_this_period = 0 total_work_done_this_period = 0
foreach task T that is RUNNING: foreach task T that is RUNNING:
x = T.current_cpu_time - T.period_start_cpu_time x = T.current_cpu_time - T.cpu_time_at_last_sched
T.project.work_done_this_period += x T.project.work_done_this_period += x
total_work_done_this_period += x total_work_done_this_period += x
@ -197,7 +198,7 @@ foreach task T
suspend (or kill) suspend (or kill)
foreach task T foreach task T
T.period_start_cpu_time = T.current_cpu_time T.cpu_time_at_last_sched = T.current_cpu_time
</pre> </pre>
<h2>Work fetch policy</h2> <h2>Work fetch policy</h2>