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Add first version of index and distance tracer

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Signed-off-by: Rafael Ravedutti <rafaelravedutti@gmail.com>
This commit is contained in:
Rafael Ravedutti 2021-07-09 23:49:14 +02:00
parent e6062e8f79
commit d97fc577b0
3 changed files with 85 additions and 28 deletions
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8
Makefile
View File

@ -33,6 +33,14 @@ ifeq ($(strip $(MEM_TRACER)),true)
DEFINES += -DMEM_TRACER
endif
ifeq ($(strip $(INDEX_TRACER)),true)
DEFINES += -DINDEX_TRACER
endif
ifneq ($(VECTOR_WIDTH),)
DEFINES += -DVECTOR_WIDTH=$(VECTOR_WIDTH)
endif
VPATH = $(SRC_DIR) $(ASM_DIR)
ASM = $(patsubst $(SRC_DIR)/%.c, $(BUILD_DIR)/%.s,$(wildcard $(SRC_DIR)/*.c))
OVERWRITE:= $(patsubst $(ASM_DIR)/%-new.s, $(BUILD_DIR)/%.o,$(wildcard $(ASM_DIR)/*-new.s))

4
config.mk
View File

@ -12,6 +12,10 @@ NEIGHBORS_LOOP_RUNS ?= 1
EXPLICIT_TYPES ?= false
# Trace memory addresses for cache simulator
MEM_TRACER ?= false
# Trace indexes and distances for gather-md
INDEX_TRACER ?= false
# Vector width (elements) for index and distance tracer
VECTOR_WIDTH ?= 8
#Feature options
OPTIONS = -DALIGNMENT=64

101
src/force.c
View File

@ -27,22 +27,63 @@
#include <parameter.h>
#include <atom.h>
#ifndef TRACER_PRINT
# include <stdio.h>
# ifdef MEM_TRACER
# define TRACER_INIT FILE *tracer_fp; \
if(first_exec) { tracer_fp = fopen("mem_tracer.out", "w"); }
# define TRACER_END if(first_exec) { fclose(tracer_fp); }
# define TRACER_PRINT(addr, op) if(first_exec) { fprintf(tracer_fp, "%c: %p\n", op, (void *)(&(addr))); }
# else
# define TRACER_INIT
# define TRACER_END
# define TRACER_PRINT(addr, op)
#if defined(MEM_TRACER) || defined(INDEX_TRACER)
#include <stdio.h>
#include <stdlib.h>
#endif
#ifdef MEM_TRACER
# define MEM_TRACER_INIT FILE *mem_tracer_fp; \
if(first_exec) { mem_tracer_fp = fopen("mem_tracer.out", "w"); }
# define MEM_TRACER_END if(first_exec) { fclose(mem_tracer_fp); }
# define MEM_TRACE(addr, op) if(first_exec) { fprintf(mem_tracer_fp, "%c: %p\n", op, (void *)(&(addr))); }
#else
# define MEM_TRACER_INIT
# define MEM_TRACER_END
# define MEM_TRACE(addr, op)
#endif
#ifdef INDEX_TRACER
# ifndef VECTOR_WIDTH
# define VECTOR_WIDTH 8
# endif
# define INDEX_TRACER_INIT FILE *index_tracer_fp; \
if(first_exec) { index_tracer_fp = fopen("index_tracer.out", "w"); }
# define INDEX_TRACER_END if(first_exec) { fclose(index_tracer_fp); }
# define INDEX_TRACE(l, e) if(first_exec) { \
for(int __i = 0; __i < (e); __i += VECTOR_WIDTH) { \
int __e = (((e) - __i) < VECTOR_WIDTH) ? ((e) - __i) : VECTOR_WIDTH; \
fprintf(index_tracer_fp, "I: "); \
for(int __j = 0; __j < __e; ++__j) { \
fprintf(index_tracer_fp, "%d ", l[__i + __j]); \
} \
fprintf(index_tracer_fp, "\n"); \
} \
}
# define DIST_TRACE(l, e) if(first_exec) { \
for(int __i = 0; __i < (e); __i += VECTOR_WIDTH) { \
int __e = (((e) - __i) < VECTOR_WIDTH) ? ((e) - __i) : VECTOR_WIDTH; \
if(__e > 1) { \
fprintf(index_tracer_fp, "D: "); \
for(int __j = 0; __j < __e - 1; ++__j) { \
int __dist = abs(l[__i + __j + 1] - l[__i + __j]); \
fprintf(index_tracer_fp, "%d ", __dist); \
} \
fprintf(index_tracer_fp, "\n"); \
} \
} \
}
#else
# define INDEX_TRACER_INIT
# define INDEX_TRACER_END
# define INDEX_TRACE(l, e)
# define DIST_TRACE(l, e)
#endif
double computeForce(Parameter *param, Atom *atom, Neighbor *neighbor, int first_exec) {
TRACER_INIT;
MEM_TRACER_INIT;
INDEX_TRACER_INIT;
double S = getTimeStamp();
int Nlocal = atom->Nlocal;
int* neighs;
@ -71,13 +112,13 @@ double computeForce(Parameter *param, Atom *atom, Neighbor *neighbor, int first_
MD_FLOAT fiy = 0;
MD_FLOAT fiz = 0;
TRACER_PRINT(atom_x(i), 'R');
TRACER_PRINT(atom_y(i), 'R');
TRACER_PRINT(atom_z(i), 'R');
MEM_TRACE(atom_x(i), 'R');
MEM_TRACE(atom_y(i), 'R');
MEM_TRACE(atom_z(i), 'R');
#ifdef EXPLICIT_TYPES
const int type_i = atom->type[i];
TRACER_PRINT(atom->type(i), 'R');
MEM_TRACE(atom->type(i), 'R');
#endif
#if VARIANT == stub && defined(NEIGHBORS_LOOP_RUNS) && NEIGHBORS_LOOP_RUNS > 1
@ -86,6 +127,9 @@ double computeForce(Parameter *param, Atom *atom, Neighbor *neighbor, int first_
for(int n = 0; n < nmax; n++) {
#endif
INDEX_TRACE(neighs, numneighs);
DIST_TRACE(neighs, numneighs);
for(int k = 0; k < numneighs; k++) {
int j = neighs[k];
MD_FLOAT delx = xtmp - atom_x(j);
@ -93,10 +137,10 @@ double computeForce(Parameter *param, Atom *atom, Neighbor *neighbor, int first_
MD_FLOAT delz = ztmp - atom_z(j);
MD_FLOAT rsq = delx * delx + dely * dely + delz * delz;
TRACER_PRINT(neighs[k], 'R');
TRACER_PRINT(atom_x(j), 'R');
TRACER_PRINT(atom_y(j), 'R');
TRACER_PRINT(atom_z(j), 'R');
MEM_TRACE(neighs[k], 'R');
MEM_TRACE(atom_x(j), 'R');
MEM_TRACE(atom_y(j), 'R');
MEM_TRACE(atom_z(j), 'R');
#ifdef EXPLICIT_TYPES
const int type_j = atom->type[j];
@ -104,7 +148,7 @@ double computeForce(Parameter *param, Atom *atom, Neighbor *neighbor, int first_
const MD_FLOAT cutforcesq = atom->cutforcesq[type_ij];
const MD_FLOAT sigma6 = atom->sigma6[type_ij];
const MD_FLOAT epsilon = atom->epsilon[type_ij];
TRACER_PRINT(atom->type(j), 'R');
MEM_TRACE(atom->type(j), 'R');
#endif
if(rsq < cutforcesq) {
@ -125,16 +169,17 @@ double computeForce(Parameter *param, Atom *atom, Neighbor *neighbor, int first_
fy[i] += fiy;
fz[i] += fiz;
TRACER_PRINT(fx[i], 'R');
TRACER_PRINT(fx[i], 'W');
TRACER_PRINT(fy[i], 'R');
TRACER_PRINT(fy[i], 'W');
TRACER_PRINT(fz[i], 'R');
TRACER_PRINT(fz[i], 'W');
MEM_TRACE(fx[i], 'R');
MEM_TRACE(fx[i], 'W');
MEM_TRACE(fy[i], 'R');
MEM_TRACE(fy[i], 'W');
MEM_TRACE(fz[i], 'R');
MEM_TRACE(fz[i], 'W');
}
LIKWID_MARKER_STOP("force");
double E = getTimeStamp();
TRACER_END;
INDEX_TRACER_END;
MEM_TRACER_END;
return E-S;
}