boinc/sched/credit.h

61 lines
2.0 KiB
C++

// 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/>.
#include <vector>
#include "boinc_db.h"
#define ERROR_RATE_INIT 0.1
// the initial error rate of a host or app version
#define MIN_HOST_SAMPLES 10
// use host scaling only if have this many samples for host
#define MIN_VERSION_SAMPLES 100
// update a version's scale only if it has this many samples
// parameters for maintaining averages.
// per-host averages respond faster to change
#define HAV_AVG_THRESH 20
#define HAV_AVG_WEIGHT .01
#define HAV_AVG_LIMIT 10
#define AV_AVG_THRESH 100
#define AV_AVG_WEIGHT .001
#define AV_AVG_LIMIT 10
extern double fpops_to_credit(double fpops, double intops);
// credit that should be granted for a given number of
// floating-point and integer ops
extern double cpu_time_to_credit(double cpu_time, double cpu_flops_sec);
extern int grant_credit(DB_HOST& host, double start_time, double credit);
extern int update_av_scales(struct SCHED_SHMEM*);
extern int assign_credit_set(
WORKUNIT&, std::vector<RESULT>&, DB_APP&, std::vector<DB_APP_VERSION>&,
std::vector<DB_HOST_APP_VERSION>&,
double max_granted_credit, double& credit
);
extern void got_error(DB_HOST_APP_VERSION&);
extern int hav_lookup(DB_HOST_APP_VERSION& hav, int hostid, int avid);
extern int write_modified_app_versions(
std::vector<DB_APP_VERSION>& app_versions
);