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- scheduler: improve example app plan function for multithread 

svn path=/trunk/boinc/; revision=18315
This commit is contained in:
David Anderson 2009-06-05 21:11:50 +00:00
parent e7d96f3b34
commit 0bf6ddb2fd
3 changed files with 20 additions and 9 deletions
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6
checkin_notes
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@ -5131,3 +5131,9 @@ Charlie 5 June 2009
BOINCClientManager.cpp, .h
win_build/
boincmgr.vcproj
David 5 June 2009
- scheduler: improve example app plan function for multithread
sched/
sched_plan.cpp,h

22
sched/sched_plan.cpp
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@ -34,19 +34,20 @@
int app_plan(SCHEDULER_REQUEST& sreq, char* plan_class, HOST_USAGE& hu) {
if (!strcmp(plan_class, "mt")) {
// the following is for an app that can use anywhere
// from 1 to 64 threads, can control this exactly,
// and whose speedup is .95N
// (on a uniprocessor, we'll use a sequential app if one is available)
// the following is for an app that:
// - can use from 1 to 64 threads, can control this exactly
// - if it uses N threads, will use .65N cores on average
// (hence on a uniprocessor we'll use a sequential app
// if one is available)
//
int nthreads;
nthreads = effective_ncpus();
double ncpus = effective_ncpus(); // take prefs into account
int nthreads = (int)(ncpus/.65);
if (!nthreads) return PLAN_REJECT_INSUFFICIENT_CPUS;
if (nthreads > 64) nthreads = 64;
hu.avg_ncpus = nthreads;
hu.avg_ncpus = nthreads*.65;
hu.max_ncpus = nthreads;
sprintf(hu.cmdline, "--nthreads %d", nthreads);
hu.flops = 0.95*sreq.host.p_fpops*nthreads;
hu.flops = sreq.host.p_fpops*hu.avg_ncpus;
if (config.debug_version_select) {
log_messages.printf(MSG_NORMAL,
"[version] Multi-thread app estimate %.2f GFLOPS\n",
@ -146,6 +147,9 @@ int app_plan(SCHEDULER_REQUEST& sreq, char* plan_class, HOST_USAGE& hu) {
return PLAN_REJECT_UNKNOWN;
}
// the following is used to enforce limits on in-progress jobs
// for GPUs and CPUs (see handle_request.cpp)
//
bool app_plan_uses_gpu(const char* plan_class) {
if (!strcmp(plan_class, "cuda")) {
return true;

1
sched/sched_plan.h
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@ -26,6 +26,7 @@
#define PLAN_REJECT_CUDA_MEM 5
#define PLAN_REJECT_CUDA_SPEED 6
#define PLAN_REJECT_UNKNOWN 7
#define PLAN_REJECT_INSUFFICIENT_CPUS 8
#define PLAN_CUDA_MIN_DRIVER_VERSION 17700
#define PLAN_CUDA_MIN_RAM (254*1024*1024)