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- scheduler: in estimating job duration, 

clamp running fraction to [.1, 1] and clamp DCF to [.1, 100]

svn path=/trunk/boinc/; revision=16722
This commit is contained in:
David Anderson 2008-12-18 18:19:42 +00:00
parent e0d1207899
commit 58cdf84551
3 changed files with 42 additions and 27 deletions
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8
checkin_notes
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@ -10243,3 +10243,11 @@ David 17 Dec 2008
sched/
sched_shmem.cpp
David 17 Dec 2008
- scheduler: in estimating job duration,
clamp running fraction to [.1, 1] and clamp DCF to [.1, 100]
sched/
sched_send.cpp
server_types.h

60
sched/sched_send.cpp
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@ -329,10 +329,6 @@ double max_allowable_disk() {
return x;
}
// if a host has active_frac < 0.1, assume 0.1 so we don't deprive it of work.
//
const double HOST_ACTIVE_FRAC_MIN = 0.1;
static double estimate_duration_unscaled(WORKUNIT& wu, BEST_APP_VERSION& bav) {
double rsc_fpops_est = wu.rsc_fpops_est;
if (rsc_fpops_est <= 0) rsc_fpops_est = 1e12;
@ -346,17 +342,42 @@ static double estimate_duration_unscaled(WORKUNIT& wu, BEST_APP_VERSION& bav) {
// across all projects.
//
double estimate_duration(WORKUNIT& wu, BEST_APP_VERSION& bav) {
double x = estimate_duration_unscaled(wu, bav);
double ewd = x/g_reply->wreq.running_frac;
if (!config.ignore_dcf && g_reply->host.duration_correction_factor) {
ewd *= g_reply->host.duration_correction_factor;
double edu = estimate_duration_unscaled(wu, bav);
double rf;
if (g_request->core_client_version<=419) {
rf = g_reply->host.on_frac;
} else {
rf = g_reply->host.active_frac * g_reply->host.on_frac;
}
// clamp running_frac and DCF to a reasonable range
//
if (rf > 1) {
log_messages.printf(MSG_NORMAL, "running_frac=%f; setting to 1\n");
rf = 1;
} else if (rf < .1) {
log_messages.printf(MSG_NORMAL, "running_frac=%f; setting to 0.1\n");
rf = .1;
}
double ed = edu/rf;
if (!config.ignore_dcf) {
double dcf = g_reply->host.duration_correction_factor;
if (dcf > 10) {
log_messages.printf(MSG_NORMAL, "DCF=%f; setting to 10\n", dcf);
dcf = 10;
} else if (dcf < 0.1) {
log_messages.printf(MSG_NORMAL, "DCF=%f; setting to 0.1\n", dcf);
dcf = 0.1;
}
ed *= dcf;
}
if (config.debug_send) {
log_messages.printf(MSG_DEBUG,
"est. duration for WU %d: unscaled %f scaled %f\n", wu.id, x, ewd
"est. duration for WU %d: unscaled %f scaled %f\n", wu.id, edu, ed
);
}
return ewd;
return ed;
}
// Find or compute various info about the host;
@ -1260,18 +1281,6 @@ static void explain_to_user() {
}
}
static void get_running_frac() {
if (g_request->core_client_version<=419) {
g_wreq->running_frac = g_reply->host.on_frac;
} else {
g_wreq->running_frac = g_reply->host.active_frac * g_reply->host.on_frac;
}
if (g_wreq->running_frac < HOST_ACTIVE_FRAC_MIN) {
g_wreq->running_frac = HOST_ACTIVE_FRAC_MIN;
}
if (g_wreq->running_frac > 1) g_wreq->running_frac = 1;
}
static void send_work_old() {
g_wreq->beta_only = false;
g_wreq->user_apps_only = true;
@ -1363,8 +1372,6 @@ void send_work() {
set_trust();
get_running_frac();
if (config.debug_send) {
log_messages.printf(MSG_DEBUG,
"%s matchmaker scheduling; %s EDF sim\n",
@ -1377,8 +1384,9 @@ void send_work() {
(int)g_request->global_prefs.work_buf_min()
);
log_messages.printf(MSG_DEBUG,
"running frac %f DCF %f est delay %d\n",
g_wreq->running_frac,
"active_frac %f on_frac %f DCF %f est delay %d\n",
g_reply->host.active_frac,
g_reply->host.on_frac,
g_reply->host.duration_correction_factor,
(int)g_request->estimated_delay
);

1
sched/server_types.h
View File

@ -119,7 +119,6 @@ struct WORK_REQ {
// http://boinc.berkeley.edu/trac/wiki/ClientSched#NormalizedCPUTime
double disk_available;
int nresults;
double running_frac;
bool trust; // allow unreplicated jobs to be sent
// The following keep track of the "easiest" job that was rejected