mirror of https://github.com/BOINC/boinc.git
68 lines
2.2 KiB
C++
68 lines
2.2 KiB
C++
// This file is part of BOINC.
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// http://boinc.berkeley.edu
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// Copyright (C) 2008 University of California
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//
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// BOINC is free software; you can redistribute it and/or modify it
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// under the terms of the GNU Lesser General Public License
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// as published by the Free Software Foundation,
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// either version 3 of the License, or (at your option) any later version.
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//
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// BOINC is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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// See the GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with BOINC. If not, see <http://www.gnu.org/licenses/>.
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#include <vector>
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#include "boinc_db.h"
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// Historical note: named after Jeff Cobb
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//
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#define COBBLESTONE_FACTOR 100.0
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#define ERROR_RATE_INIT 0.1
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// the initial error rate of a host or app version
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#define MIN_HOST_SAMPLES 10
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// use host scaling only if have this many samples for host
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#define MIN_VERSION_SAMPLES 100
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// update a version's scale only if it has this many samples
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#define COBBLESTONE_SCALE 200/86400e9
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// multiply normalized PFC by this to get Cobblestones
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// parameters for maintaining averages.
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// per-host averages respond faster to change
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#define HAV_AVG_THRESH 20
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#define HAV_AVG_WEIGHT .01
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#define HAV_AVG_LIMIT 10
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#define AV_AVG_THRESH 100
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#define AV_AVG_WEIGHT .001
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#define AV_AVG_LIMIT 10
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extern double fpops_to_credit(double fpops, double intops);
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// credit that should be granted for a given number of
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// floating-point and integer ops
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extern int grant_credit(
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DB_HOST& host, double start_time, double cpu_time, double credit
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);
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extern int update_av_scales(struct SCHED_SHMEM*);
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extern int assign_credit_set(
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WORKUNIT&, std::vector<RESULT>&, DB_APP&, std::vector<DB_APP_VERSION>&,
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std::vector<DB_HOST_APP_VERSION>&,
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double max_granted_credit, double& credit
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);
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extern void got_error(DB_HOST_APP_VERSION&);
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extern int hav_lookup(DB_HOST_APP_VERSION& hav, int hostid, int avid);
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extern int write_modified_app_versions(
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std::vector<DB_APP_VERSION>& app_versions
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);
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