Some dual-GPU laptops (e.g., Macbook Pro) don't power down the more powerful GPU until all applications which used them exit. To save battery life, the client launches a second instance of the client as a child process to detect and get info about the GPUs.
The child process writes the info to a temp file which our main client then reads.
This option is enabled at compile time by defining USE_CHILD_PROCESS_TO_DETECT_GPUS as non-zero in gpu_detect.cpp
http://boinc.berkeley.edu/trac/wiki/ClientAppConfig
This lets users do the following:
1) limit the number of concurrent jobs of a given app
(e.g. for WCG apps that are I/O-intensive)
2) Specify the CPU and GPU usage parameters of GPU versions
of a given app.
Implementation notes:
- max app concurrency is enforced in 2 places:
1) when building the initial job run list
2) when enforcing the final job run list
Both are needed to avoid possible starvation.
- however, we don't enforce it during RR simulation.
Doing so could cause erroneous shortfall and work fetch.
This means, however, that work buffering will not work
as expected if you're using max concurrency.
If the file "client_opaque.txt" exists on the client,
include its contents in scheduler request messages.
On the scheduler, parse this into SCHEDULER_REQUEST::client_opaque,
where it can be used by the customizable scheduler functions.
svn path=/trunk/boinc/; revision=24586
this is needed to handle stale entries and slots
reserved by now-dead PIDs
- client: unify code for writing soft link files
svn path=/trunk/boinc/; revision=18256
Instead, write the info into a file in the slot directory,
and check for these files on startup.
This should reduce the overhead of state-file writing
on machines with lots of cores.
There will still be a flurry of writes each time a job finishes,
but reducing that overhead would be a larger job.
- client: make sure we write the state file after a failed RPC
svn path=/trunk/boinc/; revision=17814
- client: change logic in a pathological file xfer case
(we asked for tail of file, proxy returned whole file)
to report fopen() errors correctly, and to close all open files
svn path=/trunk/boinc/; revision=16150
- scheduler: fix bug in adaptive replication:
if send an unreplicated job to untrusted host,
set both wu.target_nresults and wu.min_quorum to app.target_nresults.
svn path=/trunk/boinc/; revision=15762
- user web: improve "team search" function,
and get rid of the superceded "search by name" function
- user web: don't show team founder link to initiate transfer
- user web: show team types
- user web: fix "top teams by type" function
- client: tread NOT_FOUND error on file upload as transient;
it means the project is missing its file_upload_handler
svn path=/trunk/boinc/; revision=14272
- move client sandbox-specific code to a new file, sandbox.C
- remove g_use_sandbox from util.C; move to MainDocument.cpp (manager)
and sandbox.C (client)
- don't declare check_security() in util.h; it's not in util.C
- don't call remove_project_owned_file_or_dir() in
boinc_delete_file_aux() or boinc_rmdir();
rather, at the points in the client that delete
dirs that are usually owned by boinc_projects,
call remove_project_owned_file_or_dir() first,
then clean_out_dir().
- rename boinc_exec() to switcher_exec() and move it to sandbox.C
Note: this change was sparked by needing to remove a call to getgrnam()
from boinclib, to avoid requiring the same version of glibc
on both compile and target hosts
svn path=/trunk/boinc/; revision=13784
Charlie Fenton