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boinc/client/cs_prefs.cpp

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// This file is part of BOINC.
// http://boinc.berkeley.edu
// Copyright (C) 2008 University of California
//
// BOINC is free software; you can redistribute it and/or modify it
// under the terms of the GNU Lesser General Public License
// as published by the Free Software Foundation,
// either version 3 of the License, or (at your option) any later version.
//
// BOINC is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with BOINC. If not, see <http://www.gnu.org/licenses/>.
// Logic related to general (also known as global) preferences:
// when to compute, how much disk to use, etc.
//
#include "cpp.h"
#ifdef _WIN32
#include "boinc_win.h"
#else
#include "config.h"
#if HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#if HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#endif
#include "str_util.h"
#include "str_replace.h"
#include "util.h"
#include "filesys.h"
#include "parse.h"
#include "file_names.h"
#include "cpu_benchmark.h"
#include "client_msgs.h"
#include "client_state.h"
using std::min;
using std::string;
#define MAX_PROJ_PREFS_LEN 65536
// max length of project-specific prefs
// Return the maximum allowed disk usage as determined by user preferences.
// There are three different settings in the prefs;
// return the least of the three.
//
double CLIENT_STATE::allowed_disk_usage(double boinc_total) {
double limit_pct, limit_min_free, limit_abs;
limit_pct = host_info.d_total*global_prefs.disk_max_used_pct/100.0;
limit_min_free = boinc_total + host_info.d_free - global_prefs.disk_min_free_gb*GIGA;
limit_abs = global_prefs.disk_max_used_gb*(GIGA);
double size = min(min(limit_abs, limit_pct), limit_min_free);
if (size < 0) size = 0;
return size;
}
#ifndef SIM
// populate:
// PROJECT::disk_usage for all projects
// GLOBAL_STATE::client_disk_usage
// GLOBAL_STATE::total_disk_usage
//
int CLIENT_STATE::get_disk_usages() {
char buf[256];
unsigned int i;
double size;
PROJECT* p;
int retval;
client_disk_usage = 0;
total_disk_usage = 0;
for (i=0; i<projects.size(); i++) {
p = projects[i];
p->disk_usage = 0;
get_project_dir(p, buf, sizeof(buf));
retval = dir_size(buf, size);
if (!retval) p->disk_usage = size;
}
for (i=0; i<active_tasks.active_tasks.size(); i++) {
ACTIVE_TASK* atp = active_tasks.active_tasks[i];
get_slot_dir(atp->slot, buf, sizeof(buf));
retval = dir_size(buf, size);
if (retval) continue;
atp->wup->project->disk_usage += size;
}
for (i=0; i<projects.size(); i++) {
p = projects[i];
total_disk_usage += p->disk_usage;
}
retval = dir_size(".", size, false);
if (!retval) {
client_disk_usage = size;
total_disk_usage += size;
}
return 0;
}
// populate PROJECT::disk_share for all projects
//
void CLIENT_STATE::get_disk_shares() {
PROJECT* p;
unsigned int i;
double rss = 0;
for (i=0; i<projects.size(); i++) {
p = projects[i];
rss += p->resource_share;
p->disk_share = p->disk_usage;
}
if (!rss) return;
// a project is "greedy" if it's using more than its share of disk
//
double greedy_rs = 0;
double non_greedy_usage = 0;
double allowed = allowed_disk_usage(total_disk_usage);
for (i=0; i<projects.size(); i++) {
p = projects[i];
double rs = p->resource_share/rss;
if (p->disk_usage > allowed*rs) {
greedy_rs += p->resource_share;
} else {
non_greedy_usage += p->disk_usage;
}
}
if (!greedy_rs) greedy_rs = 1; // handle projects w/ zero resource share
double greedy_allowed = allowed - non_greedy_usage;
if (log_flags.disk_usage_debug) {
msg_printf(0, MSG_INFO,
"[disk_usage] allowed %.2fMB used %.2fMB",
allowed, total_disk_usage
);
}
for (i=0; i<projects.size(); i++) {
p = projects[i];
double rs = p->resource_share/rss;
if (p->disk_usage > allowed*rs) {
p->disk_share = greedy_allowed*p->resource_share/greedy_rs;
}
if (log_flags.disk_usage_debug) {
msg_printf(p, MSG_INFO,
"[disk_usage] usage %.2fMB share %.2fMB",
p->disk_usage/MEGA, p->disk_share/MEGA
);
}
}
}
// See if we should suspend processing
//
int CLIENT_STATE::check_suspend_processing() {
if (are_cpu_benchmarks_running()) {
return SUSPEND_REASON_BENCHMARKS;
}
if (config.start_delay && now < client_start_time + config.start_delay) {
return SUSPEND_REASON_INITIAL_DELAY;
}
if (os_requested_suspend) {
return SUSPEND_REASON_OS;
}
switch (cpu_run_mode.get_current()) {
case RUN_MODE_ALWAYS: break;
case RUN_MODE_NEVER:
return SUSPEND_REASON_USER_REQ;
default:
// "run according to prefs" checks:
//
if (!global_prefs.run_on_batteries
&& host_info.host_is_running_on_batteries()
) {
return SUSPEND_REASON_BATTERIES;
}
if (!global_prefs.run_if_user_active && user_active) {
return SUSPEND_REASON_USER_ACTIVE;
}
if (global_prefs.cpu_times.suspended()) {
return SUSPEND_REASON_TIME_OF_DAY;
}
if (global_prefs.suspend_if_no_recent_input) {
bool idle = host_info.users_idle(
check_all_logins, global_prefs.suspend_if_no_recent_input
);
if (idle) {
return SUSPEND_REASON_NO_RECENT_INPUT;
}
}
if (now - exclusive_app_running < EXCLUSIVE_APP_WAIT) {
return SUSPEND_REASON_EXCLUSIVE_APP_RUNNING;
}
if (global_prefs.suspend_cpu_usage && non_boinc_cpu_usage*100 > global_prefs.suspend_cpu_usage) {
return SUSPEND_REASON_CPU_USAGE;
}
}
if (global_prefs.cpu_usage_limit < 99) { // round-off?
static double last_time=0, debt=0;
double diff = now - last_time;
last_time = now;
if (diff >= POLL_INTERVAL/2. && diff < POLL_INTERVAL*10.) {
debt += diff*global_prefs.cpu_usage_limit/100;
if (debt < 0) {
return SUSPEND_REASON_CPU_THROTTLE;
} else {
debt -= diff;
}
}
}
if (!coprocs.none()) {
int old_gpu_suspend_reason = gpu_suspend_reason;
gpu_suspend_reason = 0;
switch (gpu_run_mode.get_current()) {
case RUN_MODE_ALWAYS:
break;
case RUN_MODE_NEVER:
gpu_suspend_reason = SUSPEND_REASON_USER_REQ;
break;
default:
if (now - exclusive_gpu_app_running < EXCLUSIVE_APP_WAIT) {
gpu_suspend_reason = SUSPEND_REASON_EXCLUSIVE_APP_RUNNING;
break;
}
if (user_active && !global_prefs.run_gpu_if_user_active) {
gpu_suspend_reason = SUSPEND_REASON_USER_ACTIVE;
break;
}
}
if (log_flags.cpu_sched) {
if (old_gpu_suspend_reason && !gpu_suspend_reason) {
msg_printf(NULL, MSG_INFO, "[cpu_sched] resuming GPU activity");
request_schedule_cpus("GPU resumption");
} else if (!old_gpu_suspend_reason && gpu_suspend_reason) {
msg_printf(NULL, MSG_INFO, "[cpu_sched] suspending GPU activity");
request_schedule_cpus("GPU suspension");
}
}
}
return 0;
}
void print_suspend_tasks_message(int reason) {
msg_printf(NULL, MSG_INFO, "Suspending computation - %s", suspend_reason_string(reason));
}
int CLIENT_STATE::suspend_tasks(int reason) {
if (reason == SUSPEND_REASON_CPU_THROTTLE) {
if (log_flags.cpu_sched) {
msg_printf(NULL, MSG_INFO, "[cpu_sched] Suspending - CPU throttle");
}
} else {
print_suspend_tasks_message(reason);
}
active_tasks.suspend_all(reason);
return 0;
}
int CLIENT_STATE::resume_tasks(int reason) {
if (reason == SUSPEND_REASON_CPU_THROTTLE) {
if (log_flags.cpu_sched) {
msg_printf(NULL, MSG_INFO, "[cpu_sched] Resuming - CPU throttle");
}
active_tasks.unsuspend_all();
} else {
msg_printf(NULL, MSG_INFO, "Resuming computation");
active_tasks.unsuspend_all();
request_schedule_cpus("Resuming computation");
}
return 0;
}
// Check whether to set network_suspended and file_xfers_suspended.
//
void CLIENT_STATE::check_suspend_network() {
network_suspended = false;
file_xfers_suspended = false;
network_suspend_reason = 0;
if (os_requested_suspend) {
network_suspend_reason = SUSPEND_REASON_OS;
network_suspended = true;
return;
}
// no network traffic if we're allowing unsigned apps
//
if (config.unsigned_apps_ok) {
network_suspended = true;
file_xfers_suspended = true;
network_suspend_reason = SUSPEND_REASON_USER_REQ;
return;
}
// was there a recent GUI RPC that needs network?
//
bool recent_rpc = gui_rpcs.recent_rpc_needs_network(
ALLOW_NETWORK_IF_RECENT_RPC_PERIOD
);
switch(network_run_mode.get_current()) {
case RUN_MODE_ALWAYS:
return;
case RUN_MODE_NEVER:
file_xfers_suspended = true;
if (!recent_rpc) network_suspended = true;
network_suspend_reason = SUSPEND_REASON_USER_REQ;
}
if (global_prefs.daily_xfer_limit_mb && global_prefs.daily_xfer_period_days) {
double up, down;
daily_xfer_history.totals(
global_prefs.daily_xfer_period_days, up, down
);
if (up+down > global_prefs.daily_xfer_limit_mb*MEGA) {
file_xfers_suspended = true;
if (!recent_rpc) network_suspended = true;
network_suspend_reason = SUSPEND_REASON_NETWORK_QUOTA_EXCEEDED;
}
}
if (!global_prefs.run_if_user_active && user_active) {
file_xfers_suspended = true;
if (!recent_rpc) network_suspended = true;
network_suspend_reason = SUSPEND_REASON_USER_ACTIVE;
}
if (global_prefs.net_times.suspended()) {
file_xfers_suspended = true;
if (!recent_rpc) network_suspended = true;
network_suspend_reason = SUSPEND_REASON_TIME_OF_DAY;
}
if (now - exclusive_app_running < EXCLUSIVE_APP_WAIT) {
file_xfers_suspended = true;
if (!recent_rpc) network_suspended = true;
network_suspend_reason = SUSPEND_REASON_EXCLUSIVE_APP_RUNNING;
}
}
#endif // ifndef SIM
// call this only after parsing global prefs
//
PROJECT* CLIENT_STATE::global_prefs_source_project() {
return lookup_project(global_prefs.source_project);
}
void CLIENT_STATE::show_global_prefs_source(bool found_venue) {
PROJECT* pp = global_prefs_source_project();
if (pp) {
msg_printf(pp, MSG_INFO,
"General prefs: from %s (last modified %s)",
pp->get_project_name(), time_to_string(global_prefs.mod_time)
);
} else {
msg_printf(NULL, MSG_INFO,
"General prefs: from %s (last modified %s)",
global_prefs.source_project,
time_to_string(global_prefs.mod_time)
);
}
if (strlen(main_host_venue)) {
msg_printf(pp, MSG_INFO, "Computer location: %s", main_host_venue);
if (found_venue) {
msg_printf(NULL, MSG_INFO,
"General prefs: using separate prefs for %s", main_host_venue
);
} else {
msg_printf(pp, MSG_INFO,
"General prefs: no separate prefs for %s; using your defaults",
main_host_venue
);
}
} else {
msg_printf(pp, MSG_INFO, "Host location: none");
msg_printf(pp, MSG_INFO, "General prefs: using your defaults");
}
}
// parse user's project preferences,
// generating FILE_REF and FILE_INFO objects for each <app_file> element.
//
int PROJECT::parse_preferences_for_user_files() {
char buf[1024];
string timestamp, open_name, url, filename;
FILE_INFO* fip;
FILE_REF fr;
user_files.clear();
size_t n=0, start, end;
while (1) {
start = project_specific_prefs.find("<app_file>", n);
if (start == string::npos) break;
end = project_specific_prefs.find("</app_file>", n);
if (end == string::npos) break;
start += strlen("<app_file>");
string x = project_specific_prefs.substr(start, end);
n = end + strlen("</app_file>");
strlcpy(buf, x.c_str(), sizeof(buf));
if (!parse_str(buf, "<timestamp>", timestamp)) break;
if (!parse_str(buf, "<open_name>", open_name)) break;
if (!parse_str(buf, "<url>", url)) break;
filename = open_name + "_" + timestamp;
fip = gstate.lookup_file_info(this, filename.c_str());
if (!fip) {
fip = new FILE_INFO;
fip->project = this;
fip->download_urls.add(url);
strcpy(fip->name, filename.c_str());
fip->is_user_file = true;
gstate.file_infos.push_back(fip);
}
fr.file_info = fip;
strcpy(fr.open_name, open_name.c_str());
user_files.push_back(fr);
}
return 0;
}
// Read global preferences into the global_prefs structure.
// 1) read the override file to get venue in case it's there
// 2) read global_prefs.xml
// 3) read the override file again
//
// This is called:
// - on startup
// - on completion of a scheduler or AMS RPC, if they sent prefs
// - in response to read_global_prefs_override GUI RPC
//
void CLIENT_STATE::read_global_prefs(
const char* fname, const char* override_fname
) {
bool found_venue;
bool venue_specified_in_override = false;
int retval;
FILE* f;
string foo;
if (override_fname) {
retval = read_file_string(override_fname, foo);
if (!retval) {
parse_str(foo.c_str(), "<host_venue>", main_host_venue, sizeof(main_host_venue));
if (strlen(main_host_venue)) {
venue_specified_in_override = true;
}
}
}
retval = global_prefs.parse_file(
fname, main_host_venue, found_venue
);
if (retval) {
if (retval == ERR_FOPEN) {
msg_printf(NULL, MSG_INFO,
"No general preferences found - using defaults"
);
} else {
msg_printf(NULL, MSG_INFO,
"Couldn't parse preferences file - using defaults"
);
boinc_delete_file(fname);
}
global_prefs.init();
} else {
if (!venue_specified_in_override) {
// check that the source project's venue matches main_host_venue.
// If not, read file again.
// This is a fix for cases where main_host_venue is out of synch
//
PROJECT* p = global_prefs_source_project();
if (p && strcmp(main_host_venue, p->host_venue)) {
strcpy(main_host_venue, p->host_venue);
global_prefs.parse_file(fname, main_host_venue, found_venue);
}
}
show_global_prefs_source(found_venue);
}
// read the override file
//
global_prefs.override_file_present = false;
if (override_fname) {
f = fopen(override_fname, "r");
if (f) {
MIOFILE mf;
GLOBAL_PREFS_MASK mask;
mf.init_file(f);
XML_PARSER xp(&mf);
global_prefs.parse_override(xp, "", found_venue, mask);
msg_printf(NULL, MSG_INFO, "Reading preferences override file");
fclose(f);
global_prefs.override_file_present = true;
}
}
msg_printf(NULL, MSG_INFO, "Preferences:");
msg_printf(NULL, MSG_INFO,
" max memory usage when active: %.2fMB",
(host_info.m_nbytes*global_prefs.ram_max_used_busy_frac)/MEGA
);
msg_printf(NULL, MSG_INFO,
" max memory usage when idle: %.2fMB",
(host_info.m_nbytes*global_prefs.ram_max_used_idle_frac)/MEGA
);
#ifndef SIM
get_disk_usages();
msg_printf(NULL, MSG_INFO,
" max disk usage: %.2fGB",
allowed_disk_usage(total_disk_usage)/GIGA
);
#endif
// max_cpus, bandwidth limits may have changed
//
set_ncpus();
if (ncpus != host_info.p_ncpus) {
msg_printf(NULL, MSG_INFO,
" max CPUs used: %d", ncpus
);
}
if (!global_prefs.run_if_user_active) {
msg_printf(NULL, MSG_INFO, " don't compute while active");
}
if (!global_prefs.run_gpu_if_user_active) {
msg_printf(NULL, MSG_INFO, " don't use GPU while active");
}
if (global_prefs.suspend_cpu_usage) {
msg_printf(NULL, MSG_INFO,
" suspend work if non-BOINC CPU load exceeds %.0f %%",
global_prefs.suspend_cpu_usage
);
}
if (global_prefs.max_bytes_sec_down) {
msg_printf(NULL, MSG_INFO,
" max download rate: %.0f bytes/sec",
global_prefs.max_bytes_sec_down
);
}
if (global_prefs.max_bytes_sec_up) {
msg_printf(NULL, MSG_INFO,
" max upload rate: %.0f bytes/sec",
global_prefs.max_bytes_sec_up
);
}
#ifndef SIM
file_xfers->set_bandwidth_limits(true);
file_xfers->set_bandwidth_limits(false);
#endif
msg_printf(NULL, MSG_INFO,
" (to change preferences, visit the web site of an attached project, or select Preferences in the Manager)"
);
request_schedule_cpus("Prefs update");
request_work_fetch("Prefs update");
#ifndef SIM
active_tasks.request_reread_app_info();
#endif
}
int CLIENT_STATE::save_global_prefs(
char* global_prefs_xml, char* master_url, char* scheduler_url
) {
FILE* f = boinc_fopen(GLOBAL_PREFS_FILE_NAME, "w");
if (!f) return ERR_FOPEN;
fprintf(f,
"<global_preferences>\n"
);
// tag with the project and scheduler URL,
// but only if not already tagged
//
if (!strstr(global_prefs_xml, "<source_project>")) {
fprintf(f,
" <source_project>%s</source_project>\n"
" <source_scheduler>%s</source_scheduler>\n",
master_url,
scheduler_url
);
}
fprintf(f,
"%s"
"</global_preferences>\n",
global_prefs_xml
);
fclose(f);
return 0;
}
// amount of RAM usable now
//
double CLIENT_STATE::available_ram() {
if (user_active) {
return host_info.m_nbytes * global_prefs.ram_max_used_busy_frac;
} else {
return host_info.m_nbytes * global_prefs.ram_max_used_idle_frac;
}
}
// max amount that will ever be usable
//
double CLIENT_STATE::max_available_ram() {
return host_info.m_nbytes*std::max(
global_prefs.ram_max_used_busy_frac, global_prefs.ram_max_used_idle_frac
);
}
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