check_set() wasn't returning "retry" properly in the case where
one of the calls to init_result() return ERR_OPEN_DIR
(treated as a transient failure, since it can be caused by a failed NFS mount)
This assigns credit proportional to runtime*p_fpops.
To prevent cheating, p_fpops is capped at the 95th percentile value
among active hosts,
and runtime is capped at a specified limit.
This option supports apps, like LHC's CERNvm app,
that run for a certain amount of time and then exit.
The CreditNew system doesn't work for such apps.
- trickle_credit:
To prevent cheating,
cap p_fpops at the 95th percentile value among active hosts,
and require a limit on runtime.
- require that trickle handlers supply an initialization function
svn path=/trunk/boinc/; revision=24182
see http://boinc.berkeley.edu/trac/wiki/CreditNew
Projects will need to update DB and recompile all back-end programs.
Summary:
- new way of computing credit
- "reliable host" mechanism is per app version
- "host punishment" mechanism is per app version
- adjustment of wu.rsc_fpops_est provides the
equivalent of per app version DCF
- max jobs in progress is now per app
- max jobs per RPC is now per app
TODO:
- reliable mechanism:
- populate and use host_app_version.error_rate
- populate host_app_version.turnaround
- host punishment:
- populate host_app_version.max_jobs_per_day
- populate host_app_version.n_jobs_today
- use app.max_jobs_per_day_init
- job limits:
- use app.max_jobs_in_progress, max_gpu_jobs_in_progress
- use app.max_jobs_per_rpc
- adjust wu.rsc_fpops_est
- remove old credit stuff
fpops_cumulative, credit_multiplier
credit computation in scheduler
- AVERAGE class: use the Knuth algorithm (Wikipedia)
svn path=/trunk/boinc/; revision=21021
Eric J Korpela