boinc/sched/sched_shmem.h

124 lines
3.8 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/>.
// The structure of the memory segment shared between
// the feeder and schedulers
// This is essentially a cache of DB contents:
// small static tables like app_version,
// and a queue of results waiting to be sent.
#ifndef _SCHED_SHMEM_H_
#define _SCHED_SHMEM_H_
#include "boinc_db.h"
#include "sched_util.h"
#include "sched_types.h"
#include "hr_info.h"
// the following must be at least as large as DB tables
// (counting only non-deprecated entries for the current major version)
// Increase as needed
//
#define MAX_PLATFORMS 50
#define MAX_APPS 10
#define MAX_APP_VERSIONS 50
#define MAX_ASSIGNMENTS 10
// Default number of work items in shared mem.
// You can configure this in config.xml (<shmem_work_items>)
// If you increase this above 100,
// you may exceed the max shared-memory segment size
// on some operating systems.
//
#define MAX_WU_RESULTS 100
// values of WU_RESULT.state
#define WR_STATE_EMPTY 0
#define WR_STATE_PRESENT 1
// If neither of the above, the value is the PID of a scheduler process
// that has this item reserved
// a workunit/result pair
struct WU_RESULT {
int state;
// EMPTY, PRESENT, or PID of locking process
int infeasible_count;
bool need_reliable; // try to send to a reliable host
WORKUNIT workunit;
int resultid;
int time_added_to_shared_memory;
int res_priority;
int res_server_state;
double res_report_deadline;
double fpops_size; // measured in stdevs
};
// this struct is followed in memory by an array of WU_RESULTS
//
struct SCHED_SHMEM {
bool ready; // feeder sets to true when init done
// the following fields let the scheduler make sure
// that the shared mem has the right format
int ss_size; // size of this struct, including WU_RESULT array
int platform_size; // sizeof(PLATFORM)
int app_size; // sizeof(APP)
int app_version_size; // sizeof(APP_VERSION)
int assignment_size; // sizeof(ASSIGNMENT))
int wu_result_size; // sizeof(WU_RESULT)
int nplatforms;
int napps;
double app_weight_sum;
int napp_versions;
int nassignments;
int max_platforms;
int max_apps;
int max_app_versions;
int max_assignments;
int max_wu_results;
bool locality_sched_lite; // some app uses locality sched Lite
bool have_nci_app;
bool have_apps_for_proc_type[NPROC_TYPES];
PERF_INFO perf_info;
PLATFORM platforms[MAX_PLATFORMS];
APP apps[MAX_APPS];
APP_VERSION app_versions[MAX_APP_VERSIONS];
ASSIGNMENT assignments[MAX_ASSIGNMENTS];
WU_RESULT wu_results[0];
void init(int nwu_results);
int verify();
int scan_tables();
bool no_work(int pid);
void restore_work(int pid);
#ifndef _USING_FCGI_
void show(FILE*);
#else
void show(FCGI_FILE*);
#endif
APP* lookup_app(int);
APP* lookup_app_name(char*);
APP_VERSION* lookup_app_version(int);
APP_VERSION* lookup_app_version_platform_plan_class(
int platform, char* plan_class
);
PLATFORM* lookup_platform_id(int);
PLATFORM* lookup_platform(char*);
};
#endif