src/scaling-ilp.cpp

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/*
 Copyright 2015 Nicolas Melot

 This file is part of Crown.

 Crown is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.

 Crown 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 General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with Crown. If not, see <http://www.gnu.org/licenses/>.

*/


#include <fstream>

#include <pelib/Scalar.hpp>
#include <pelib/argument_parsing.hpp>
#include <pelib/dl.h>

#include <crown/crown-scheduler.hpp>
#include <crown/CrownScalingILP.hpp>

#ifdef debug
#undef debug
#endif

#define debug(var) cout << "[" << __FILE__ << ":" << __FUNCTION__ << ":" << __LINE__ << "] " << #var << " = \"" << (var) << "\"" << endl;

using namespace std;
using namespace pelib;
using namespace crown;

#ifdef __cplusplus
extern "C" {
#endif

struct args
{
        double alpha, eta, zeta, kappa;
        bool showError, showOutput;
        pelib_argument_stream alloc, mapping, config;
        
};
typedef struct args args_t;

static args_t
parse(char **args)
{
        args_t out;
        out.showError = false;
        out.showOutput = false;
        out.alpha = 3;
        out.zeta = 0.649;
        out.eta = 0.018611;
        out.kappa = 52.639161335;
        pelib_argument_stream_init(&out.alloc);
        pelib_argument_stream_init(&out.mapping);
        pelib_argument_stream_init(&out.config);

        for(; args[0] != NULL; args++)
        {
                if(strcmp(args[0], "--show-stdout") == 0)
                {
                        out.showOutput = true;
                        continue;
                }
                if(strcmp(args[0], "--show-stderr") == 0)
                {
                        out.showError = true;
                        continue;
                }
                if(strcmp(args[0], "--alpha") == 0)
                {
                        args++;
                        stringstream str(args[0]);
                        str >> out.alpha;
                        continue;
                }
                if(strcmp(args[0], "--eta") == 0)
                {
                        args++;
                        stringstream str(args[0]);
                        str >> out.eta;
                        continue;
                }
                if(strcmp(args[0], "--zeta") == 0)
                {
                        args++;
                        stringstream str(args[0]);
                        str >> out.zeta;
                        continue;
                }
                if(strcmp(args[0], "--kappa") == 0)
                {
                        args++;
                        stringstream str(args[0]);
                        str >> out.kappa;
                        continue;
                }
                if(strcmp(args[0], "--allocation") == 0)
                {
                        args++;
                        args += pelib_argument_stream_parse(args, &out.alloc) - 1;
                        continue;
                }
                if(strcmp(args[0], "--mapping") == 0)
                {
                        args++;
                        args += pelib_argument_stream_parse(args, &out.mapping) - 1;
                        continue;
                }
                if(strcmp(args[0], "--config") == 0)
                {
                        args++;
                        args += pelib_argument_stream_parse(args, &out.config) - 1;
                        continue;
                }
        }

        return out;
}

const CrownScaling*
crown_scaling(size_t argc, char **argv)
{
        args_t args = parse(argv);
        void *libAlloc = load_lib(args.alloc.library);
        void *libMapping = load_lib(args.mapping.library);
        void *libConfig = load_lib(args.config.library);
        CrownAllocation* (*allocate)(size_t argc, char **argv);
        CrownMapping* (*map)(size_t argc, char **argv);
        CrownConfig* (*conf)(size_t argc, char **argv);
        CrownAllocation* alloc = NULL;
        CrownMapping* mapping = NULL;
        CrownConfig *config = NULL;

        // Load crown allocation
        if(args.alloc.library != NULL)
        {
                void *libConfig = load_lib(args.alloc.library);
                allocate = (CrownAllocation* (*)(size_t argc, char **argv))load_function(libConfig, "crown_allocation");
                alloc = allocate(args.alloc.argc, args.alloc.argv);
        }

        // Load crown mapping
        if(args.mapping.library != NULL)
        {
                void *libConfig = load_lib(args.mapping.library);
                map = (CrownMapping* (*)(size_t argc, char **argv))load_function(libConfig, "crown_mapping");
                mapping = map(args.mapping.argc, args.mapping.argv);
        }

        // Load crown config
        if(args.config.library != NULL)
        {
                void *libConfig = load_lib(args.config.library);
                conf = (CrownConfig* (*)(size_t argc, char **argv))load_function(libConfig, "crown_config");
                config = conf(args.config.argc, args.config.argv);
        }

        // Convert solver output to general schedule
        CrownScaling *scal = new CrownScalingILP(config, alloc, mapping, args.showOutput, args.showError);

        // Destroy object instances by libraries
        if(args.alloc.library != NULL)
        {
                void (*del)(CrownAllocation *) = (void (*)(CrownAllocation*))load_function(libAlloc, "crown_delete_algebra");
                del(alloc);
                destroy_lib(libAlloc);
        }

        // Destroy object instances by libraries
        if(args.mapping.library != NULL)
        {
                void (*del)(CrownMapping *) = (void (*)(CrownMapping*))load_function(libMapping, "crown_delete_algebra");
                del(mapping);
                destroy_lib(libMapping);
        }

        // Destroy object instances by libraries
        if(args.config.library != NULL)
        {
                void (*del)(CrownConfig *) = (void (*)(CrownConfig*))load_function(libConfig, "crown_delete_config");
                del(config);
                destroy_lib(libConfig);
        }

        return scal;
}

const CrownScheduler*
crown_scheduler(size_t argc, char **argv, const CrownScheduler *composite)
{
        return crown_scaling(argc, argv);
}

void
crown_delete_algebra(pelib::Algebra *alg)
{
        delete alg;
}

#ifdef __cplusplus
}
#endif