/
reduce-op.c
448 lines (419 loc) · 21.8 KB
/
reduce-op.c
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/*
*
* Copyright (c) 2016
* Stony Brook University
* Copyright (c) 2015 - 2016
* Los Alamos National Security, LLC.
* Copyright (c) 2011 - 2016
* University of Houston System and UT-Battelle, LLC.
* Copyright (c) 2009 - 2016
* Silicon Graphics International Corp. SHMEM is copyrighted
* by Silicon Graphics International Corp. (SGI) The OpenSHMEM API
* (shmem) is released by Open Source Software Solutions, Inc., under an
* agreement with Silicon Graphics International Corp. (SGI).
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* o Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimers.
*
* o Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* o Neither the name of the University of Houston System,
* UT-Battelle, LLC. nor the names of its contributors may be used to
* endorse or promote products derived from this software without specific
* prior written permission.
*
* o Neither the name of Los Alamos National Security, LLC, Los Alamos
* National Laboratory, LANL, the U.S. Government, nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include "state.h"
#include "trace.h"
#include "putget.h"
#include "globalvar.h"
#include "utils.h"
#include "atomic.h"
#include "comms/comms.h"
#include "shmem.h"
#ifdef HAVE_FEATURE_PSHMEM
#include "pshmem.h"
#endif /* HAVE_FEATURE_PSHMEM */
/**
* pre-defined reductions in SHMEM 1.0
*
*/
/**
* these are the arithmetic operations
*
*/
#define SHMEM_MATH_FUNC(Name, Type) \
static \
Type \
sum_##Name##_func (Type a, Type b) \
{ \
return (a) + (b); \
} \
static \
Type \
prod_##Name##_func (Type a, Type b) \
{ \
return (a) * (b); \
}
SHMEM_MATH_FUNC (short, short);
SHMEM_MATH_FUNC (int, int);
SHMEM_MATH_FUNC (long, long);
SHMEM_MATH_FUNC (double, double);
SHMEM_MATH_FUNC (float, float);
SHMEM_MATH_FUNC (longlong, long long);
SHMEM_MATH_FUNC (longdouble, long double);
SHMEM_MATH_FUNC (complexd, double complex);
SHMEM_MATH_FUNC (complexf, float complex);
/**
* these are the logical operations. Note: these are *bitwise*.
*
*/
#define SHMEM_LOGIC_FUNC(Name, Type) \
static \
Type \
and_##Name##_func (Type a, Type b) \
{ \
return (a) & (b); \
} \
static \
Type \
or_##Name##_func (Type a, Type b) \
{ \
return (a) | (b); \
} \
static \
Type \
xor_##Name##_func (Type a, Type b) \
{ \
return (a) ^ (b); \
}
SHMEM_LOGIC_FUNC (short, short);
SHMEM_LOGIC_FUNC (int, int);
SHMEM_LOGIC_FUNC (long, long);
SHMEM_LOGIC_FUNC (longlong, long long);
/**
* these are the minima/maxima operations
*
*/
#define SHMEM_MINIMAX_FUNC(Name, Type) \
static \
Type \
min_##Name##_func (Type a, Type b) \
{ \
return (a) < (b) ? (a) : (b); \
} \
static \
Type \
max_##Name##_func (Type a, Type b) \
{ \
return (a) > (b) ? (a) : (b); \
}
SHMEM_MINIMAX_FUNC (short, short);
SHMEM_MINIMAX_FUNC (int, int);
SHMEM_MINIMAX_FUNC (long, long);
SHMEM_MINIMAX_FUNC (longlong, long long);
SHMEM_MINIMAX_FUNC (double, double);
SHMEM_MINIMAX_FUNC (float, float);
SHMEM_MINIMAX_FUNC (longdouble, long double);
/**
* common reduce code. Build generalized reduction for various types.
* Comparison operator passed as 1st parameter
*
*/
#include <string.h>
#include <stdlib.h>
/*
* Check the source and target areas to see if they touch each other.
* Need to copy things if they do.
*/
#define INRANGE_CHECK(a, b, n) \
( ( (a) >= (b) ) && ( (a) < ( (b) + (n) ) ) )
#define OVERLAP_CHECK(t, s, n) \
( INRANGE_CHECK(t, s, n) || INRANGE_CHECK(s, t, n) )
#define SHMEM_UDR_TYPE_OP(Name, Type) \
static \
void \
shmemi_udr_##Name##_to_all (Type (*the_op)(Type, Type), \
Type *target, Type *source, int nreduce, \
int PE_start, int logPE_stride, int PE_size, \
Type *pWrk, long *pSync) \
{ \
const int step = 1 << logPE_stride; \
const int nloops = nreduce / SHMEM_REDUCE_MIN_WRKDATA_SIZE; \
const int nrem = nreduce % SHMEM_REDUCE_MIN_WRKDATA_SIZE; \
const int snred = sizeof(Type) * nreduce; \
const int overlap = OVERLAP_CHECK (target, source, snred); \
size_t nget; \
int i, j; \
int pe; \
Type *tmptrg = NULL; \
Type *write_to; \
if (overlap) \
{ \
/* use temp target in case source/target overlap/same */ \
tmptrg = (Type *) malloc (snred); \
if (tmptrg == (Type *) NULL) { \
shmemi_trace (SHMEM_LOG_FATAL, \
"internal error: out of memory" \
" allocating temporary reduction buffer" \
); \
return; \
/* NOT REACHED */ \
} \
write_to = tmptrg; \
shmemi_trace (SHMEM_LOG_REDUCTION, \
"target (%p) and source (%p, size %ld)" \
" overlap, using temporary target", \
target, source, snred \
); \
} \
else \
{ \
write_to = target; \
shmemi_trace (SHMEM_LOG_REDUCTION, \
"target (%p) and source (%p, size %ld)" \
" do not overlap", \
target, source, snred \
); \
} /* end overlap check */ \
/* everyone must initialize */ \
for (j = 0; j < nreduce; j += 1) \
{ \
write_to[j] = source[j]; \
} \
shmem_barrier (PE_start, logPE_stride, PE_size, pSync); \
/* now go through other PEs and get source */ \
pe = PE_start; \
for (i = 0; i < PE_size; i+= 1) \
{ \
if (GET_STATE (mype) != pe) \
{ \
int k; \
int ti = 0, si = 0; /* target & source index walk */ \
/* pull in all the full chunks */ \
nget = SHMEM_REDUCE_MIN_WRKDATA_SIZE * sizeof (Type); \
for (k = 0; k < nloops; k += 1) \
{ \
shmem_getmem (pWrk, & (source[si]), nget, pe); \
for (j = 0; j < SHMEM_REDUCE_MIN_WRKDATA_SIZE; \
j += 1) \
{ \
write_to[ti] = \
(*the_op) (write_to[ti], pWrk[j]); \
ti += 1; \
} \
si += SHMEM_REDUCE_MIN_WRKDATA_SIZE; \
} \
nget = nrem * sizeof (Type); \
/* now get remaining part of source */ \
shmem_getmem (pWrk, & (source[si]), nget, pe); \
for (j = 0; j < nrem; j += 1) \
{ \
write_to[ti] = \
(*the_op) (write_to[ti], pWrk[j]); \
ti += 1; \
} \
} \
pe += step; \
} \
/* everyone has to have finished */ \
shmem_barrier (PE_start, logPE_stride, PE_size, pSync); \
if (overlap) \
{ \
/* write to real local target and free temp */ \
memcpy (target, tmptrg, snred); \
free (tmptrg); \
tmptrg = NULL; \
/* shmem_barrier(PE_start, logPE_stride, PE_size, pSync); */ \
/* shmem_quiet (); */ \
} \
}
SHMEM_UDR_TYPE_OP (short, short);
SHMEM_UDR_TYPE_OP (int, int);
SHMEM_UDR_TYPE_OP (long, long);
SHMEM_UDR_TYPE_OP (longlong, long long);
SHMEM_UDR_TYPE_OP (double, double);
SHMEM_UDR_TYPE_OP (float, float);
SHMEM_UDR_TYPE_OP (longdouble, long double);
SHMEM_UDR_TYPE_OP (complexd, double complex);
SHMEM_UDR_TYPE_OP (complexf, float complex);
#ifdef HAVE_FEATURE_PSHMEM
#pragma weak shmem_complexd_sum_to_all = pshmem_complexd_sum_to_all
#define shmem_complexd_sum_to_all pshmem_complexd_sum_to_all
#pragma weak shmem_complexf_sum_to_all = pshmem_complexf_sum_to_all
#define shmem_complexf_sum_to_all pshmem_complexf_sum_to_all
#pragma weak shmem_double_sum_to_all = pshmem_double_sum_to_all
#define shmem_double_sum_to_all pshmem_double_sum_to_all
#pragma weak shmem_float_sum_to_all = pshmem_float_sum_to_all
#define shmem_float_sum_to_all pshmem_float_sum_to_all
#pragma weak shmem_int_sum_to_all = pshmem_int_sum_to_all
#define shmem_int_sum_to_all pshmem_int_sum_to_all
#pragma weak shmem_long_sum_to_all = pshmem_long_sum_to_all
#define shmem_long_sum_to_all pshmem_long_sum_to_all
#pragma weak shmem_longdouble_sum_to_all = pshmem_longdouble_sum_to_all
#define shmem_longdouble_sum_to_all pshmem_longdouble_sum_to_all
#pragma weak shmem_longlong_sum_to_all = pshmem_longlong_sum_to_all
#define shmem_longlong_sum_to_all pshmem_longlong_sum_to_all
#pragma weak shmem_short_sum_to_all = pshmem_short_sum_to_all
#define shmem_short_sum_to_all pshmem_short_sum_to_all
#pragma weak shmem_complexd_prod_to_all = pshmem_complexd_prod_to_all
#define shmem_complexd_prod_to_all pshmem_complexd_prod_to_all
#pragma weak shmem_complexf_prod_to_all = pshmem_complexf_prod_to_all
#define shmem_complexf_prod_to_all pshmem_complexf_prod_to_all
#pragma weak shmem_double_prod_to_all = pshmem_double_prod_to_all
#define shmem_double_prod_to_all pshmem_double_prod_to_all
#pragma weak shmem_float_prod_to_all = pshmem_float_prod_to_all
#define shmem_float_prod_to_all pshmem_float_prod_to_all
#pragma weak shmem_int_prod_to_all = pshmem_int_prod_to_all
#define shmem_int_prod_to_all pshmem_int_prod_to_all
#pragma weak shmem_long_prod_to_all = pshmem_long_prod_to_all
#define shmem_long_prod_to_all pshmem_long_prod_to_all
#pragma weak shmem_longdouble_prod_to_all = pshmem_longdouble_prod_to_all
#define shmem_longdouble_prod_to_all pshmem_longdouble_prod_to_all
#pragma weak shmem_longlong_prod_to_all = pshmem_longlong_prod_to_all
#define shmem_longlong_prod_to_all pshmem_longlong_prod_to_all
#pragma weak shmem_short_prod_to_all = pshmem_short_prod_to_all
#define shmem_short_prod_to_all pshmem_short_prod_to_all
#pragma weak shmem_int_and_to_all = pshmem_int_and_to_all
#define shmem_int_and_to_all pshmem_int_and_to_all
#pragma weak shmem_long_and_to_all = pshmem_long_and_to_all
#define shmem_long_and_to_all pshmem_long_and_to_all
#pragma weak shmem_longlong_and_to_all = pshmem_longlong_and_to_all
#define shmem_longlong_and_to_all pshmem_longlong_and_to_all
#pragma weak shmem_short_and_to_all = pshmem_short_and_to_all
#define shmem_short_and_to_all pshmem_short_and_to_all
#pragma weak shmem_int_or_to_all = pshmem_int_or_to_all
#define shmem_int_or_to_all pshmem_int_or_to_all
#pragma weak shmem_long_or_to_all = pshmem_long_or_to_all
#define shmem_long_or_to_all pshmem_long_or_to_all
#pragma weak shmem_longlong_or_to_all = pshmem_longlong_or_to_all
#define shmem_longlong_or_to_all pshmem_longlong_or_to_all
#pragma weak shmem_short_or_to_all = pshmem_short_or_to_all
#define shmem_short_or_to_all pshmem_short_or_to_all
#pragma weak shmem_int_xor_to_all = pshmem_int_xor_to_all
#define shmem_int_xor_to_all pshmem_int_xor_to_all
#pragma weak shmem_long_xor_to_all = pshmem_long_xor_to_all
#define shmem_long_xor_to_all pshmem_long_xor_to_all
#pragma weak shmem_longlong_xor_to_all = pshmem_longlong_xor_to_all
#define shmem_longlong_xor_to_all pshmem_longlong_xor_to_all
#pragma weak shmem_short_xor_to_all = pshmem_short_xor_to_all
#define shmem_short_xor_to_all pshmem_short_xor_to_all
#pragma weak shmem_int_max_to_all = pshmem_int_max_to_all
#define shmem_int_max_to_all pshmem_int_max_to_all
#pragma weak shmem_long_max_to_all = pshmem_long_max_to_all
#define shmem_long_max_to_all pshmem_long_max_to_all
#pragma weak shmem_longlong_max_to_all = pshmem_longlong_max_to_all
#define shmem_longlong_max_to_all pshmem_longlong_max_to_all
#pragma weak shmem_short_max_to_all = pshmem_short_max_to_all
#define shmem_short_max_to_all pshmem_short_max_to_all
#pragma weak shmem_longdouble_max_to_all = pshmem_longdouble_max_to_all
#define shmem_longdouble_max_to_all pshmem_longdouble_max_to_all
#pragma weak shmem_float_max_to_all = pshmem_float_max_to_all
#define shmem_float_max_to_all pshmem_float_max_to_all
#pragma weak shmem_double_max_to_all = pshmem_double_max_to_all
#define shmem_double_max_to_all pshmem_double_max_to_all
#pragma weak shmem_int_min_to_all = pshmem_int_min_to_all
#define shmem_int_min_to_all pshmem_int_min_to_all
#pragma weak shmem_long_min_to_all = pshmem_long_min_to_all
#define shmem_long_min_to_all pshmem_long_min_to_all
#pragma weak shmem_longlong_min_to_all = pshmem_longlong_min_to_all
#define shmem_longlong_min_to_all pshmem_longlong_min_to_all
#pragma weak shmem_short_min_to_all = pshmem_short_min_to_all
#define shmem_short_min_to_all pshmem_short_min_to_all
#pragma weak shmem_longdouble_min_to_all = pshmem_longdouble_min_to_all
#define shmem_longdouble_min_to_all pshmem_longdouble_min_to_all
#pragma weak shmem_float_min_to_all = pshmem_float_min_to_all
#define shmem_float_min_to_all pshmem_float_min_to_all
#pragma weak shmem_double_min_to_all = pshmem_double_min_to_all
#define shmem_double_min_to_all pshmem_double_min_to_all
#endif /* HAVE_FEATURE_PSHMEM */
/**
* Pass in type/operation, macro builds the reduction function as
* defined above
*
*/
#define SHMEM_REDUCE_TYPE_OP(OpCall, Name, Type) \
void \
shmem_##Name##_##OpCall##_to_all(Type *target, Type *source, int nreduce, \
int PE_start, int logPE_stride, \
int PE_size, \
Type *pWrk, long *pSync) \
{ \
DEBUG_NAME ("shmem_" #Name "_" #OpCall "_to_all"); \
INIT_CHECK(debug_name); \
SYMMETRY_CHECK(target, 1, debug_name); \
SYMMETRY_CHECK(source, 2, debug_name); \
shmemi_udr_##Name##_to_all(OpCall##_##Name##_func, \
target, source, nreduce, \
PE_start, logPE_stride, PE_size, \
pWrk, pSync); \
}
SHMEM_REDUCE_TYPE_OP (sum, short, short);
SHMEM_REDUCE_TYPE_OP (sum, int, int);
SHMEM_REDUCE_TYPE_OP (sum, long, long);
SHMEM_REDUCE_TYPE_OP (sum, longlong, long long);
SHMEM_REDUCE_TYPE_OP (sum, double, double);
SHMEM_REDUCE_TYPE_OP (sum, float, float);
SHMEM_REDUCE_TYPE_OP (sum, longdouble, long double);
SHMEM_REDUCE_TYPE_OP (sum, complexd, double complex);
SHMEM_REDUCE_TYPE_OP (sum, complexf, float complex);
SHMEM_REDUCE_TYPE_OP (prod, short, short);
SHMEM_REDUCE_TYPE_OP (prod, int, int);
SHMEM_REDUCE_TYPE_OP (prod, long, long);
SHMEM_REDUCE_TYPE_OP (prod, longlong, long long);
SHMEM_REDUCE_TYPE_OP (prod, double, double);
SHMEM_REDUCE_TYPE_OP (prod, float, float);
SHMEM_REDUCE_TYPE_OP (prod, longdouble, long double);
SHMEM_REDUCE_TYPE_OP (prod, complexd, double complex);
SHMEM_REDUCE_TYPE_OP (prod, complexf, float complex);
SHMEM_REDUCE_TYPE_OP (and, short, short);
SHMEM_REDUCE_TYPE_OP (and, int, int);
SHMEM_REDUCE_TYPE_OP (and, long, long);
SHMEM_REDUCE_TYPE_OP (and, longlong, long long);
SHMEM_REDUCE_TYPE_OP (or, short, short);
SHMEM_REDUCE_TYPE_OP (or, int, int);
SHMEM_REDUCE_TYPE_OP (or, long, long);
SHMEM_REDUCE_TYPE_OP (or, longlong, long long);
SHMEM_REDUCE_TYPE_OP (xor, short, short);
SHMEM_REDUCE_TYPE_OP (xor, int, int);
SHMEM_REDUCE_TYPE_OP (xor, long, long);
SHMEM_REDUCE_TYPE_OP (xor, longlong, long long);
SHMEM_REDUCE_TYPE_OP (max, short, short);
SHMEM_REDUCE_TYPE_OP (max, int, int);
SHMEM_REDUCE_TYPE_OP (max, long, long);
SHMEM_REDUCE_TYPE_OP (max, longlong, long long);
SHMEM_REDUCE_TYPE_OP (max, double, double);
SHMEM_REDUCE_TYPE_OP (max, float, float);
SHMEM_REDUCE_TYPE_OP (max, longdouble, long double);
SHMEM_REDUCE_TYPE_OP (min, short, short);
SHMEM_REDUCE_TYPE_OP (min, int, int);
SHMEM_REDUCE_TYPE_OP (min, long, long);
SHMEM_REDUCE_TYPE_OP (min, longlong, long long);
SHMEM_REDUCE_TYPE_OP (min, double, double);
SHMEM_REDUCE_TYPE_OP (min, float, float);
SHMEM_REDUCE_TYPE_OP (min, longdouble, long double);