runner.h 2.56 KB
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/*******************************************************************************
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 * This file is part of SWIFT.
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 * Coypright (c) 2012 Pedro Gonnet (pedro.gonnet@durham.ac.uk)
 * 
 * This program 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.
 * 
 * This program 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 Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * 
 ******************************************************************************/


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/* SID stuff. */
extern const char runner_flip[];


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/* Counters. */
enum {
    runner_counter_swap = 0,
    runner_counter_stall,
    runner_counter_steal_stall,
    runner_counter_steal_empty,
    runner_counter_keep,
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    runner_counter_iact,
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    runner_counter_count,
    };
extern int runner_counter[ runner_counter_count ];


/* Counter macros. */
#ifdef COUNTER
    #define COUNT(c) ( __sync_add_and_fetch( &runner_counter[ c ] , 1 ) )
#else
    #define COUNT(c)
#endif

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/* Histogram functions. */
#define runner_hist_a 1.0
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#define runner_hist_b 100.0
#define runner_hist_N 99
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long long int runner_hist_bins[ runner_hist_N ];
#define runner_hist_hit( x ) __sync_add_and_fetch( &runner_hist_bins[ (int)fmax( 0.0 , fmin( runner_hist_N-1 , ((x) - runner_hist_a) / (runner_hist_b - runner_hist_a) * runner_hist_N ) ) ] , 1 )


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/* Get the inlining right. */
#ifndef INLINE
# if __GNUC__ && !__GNUC_STDC_INLINE__
#  define INLINE extern inline
# else
#  define INLINE inline
# endif
#endif


/* A struct representing a runner's thread and its data. */
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struct runner {
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    /* The id of this thread. */
    int id;

    /* The thread which it is running. */
    pthread_t thread;
    
    /* The underlying runner. */
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    struct engine *e;
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    };


/* Function prototypes. */
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void runner_doghost ( struct runner *r , struct cell *c );
void runner_dopair_density ( struct runner *r , struct cell *ci , struct cell *cj );
void runner_doself_density ( struct runner *r , struct cell *c );
void runner_dosub_density ( struct runner *r , struct cell *ci , struct cell *cj , int flags );
void runner_dosort ( struct runner *r , struct cell *c , int flag );
void *runner_main ( void *data );