Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

[POC] Adds TH_TENSOR_APPLY2_PARALLEL #395

Open
wants to merge 1 commit into
base: master
Choose a base branch
from
Open

[POC] Adds TH_TENSOR_APPLY2_PARALLEL #395

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Jump to
Jump to file
Failed to load files.
Diff view
Diff view
163 changes: 163 additions & 0 deletions lib/TH/THTensorApply.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -425,4 +425,167 @@
THFree(TENSOR##_counter); \
}

#define TH_TENSOR_APPLY2_PARALLEL(TYPE1, TENSOR1, TYPE2, TENSOR2, CODE) \
{ \
long *TENSOR1##_counter = NULL; \
long TENSOR1##_stride = 0, TENSOR1##_size = 0, TENSOR1##_dim = 0, TENSOR1##_i, TENSOR1##_n; \
int TENSOR1##_isContiguous = 1; \
long *TENSOR2##_counter = NULL; \
long TENSOR2##_stride = 0, TENSOR2##_size = 0, TENSOR2##_dim = 0, TENSOR2##_i, TENSOR2##_n; \
int TENSOR2##_isContiguous = 1; \
int TH_TENSOR_APPLY_hasFinished = 0; \
\
TENSOR1##_n = (TENSOR1->nDimension ? 1 : 0); \
for(TENSOR1##_i = 0; TENSOR1##_i < TENSOR1->nDimension; TENSOR1##_i++) \
TENSOR1##_n *= TENSOR1->size[TENSOR1##_i]; \
\
TENSOR2##_n = (TENSOR2->nDimension ? 1 : 0); \
for(TENSOR2##_i = 0; TENSOR2##_i < TENSOR2->nDimension; TENSOR2##_i++) \
TENSOR2##_n *= TENSOR2->size[TENSOR2##_i]; \
\
if(TENSOR1##_n != TENSOR2##_n) /* should we do the check in the function instead? i think so */ \
THError("inconsistent tensor size"); \
\
if(TENSOR1->nDimension == 0) \
TH_TENSOR_APPLY_hasFinished = 1; \
else \
{ \
for(TENSOR1##_dim = TENSOR1->nDimension-1; TENSOR1##_dim >= 0; TENSOR1##_dim--) \
{ \
if(TENSOR1->size[TENSOR1##_dim] != 1) \
break; \
} \
TENSOR1##_stride = (TENSOR1##_dim == -1 ? 0 : TENSOR1->stride[TENSOR1##_dim]); \
TENSOR1##_size = 1; \
for(TENSOR1##_dim = TENSOR1->nDimension-1; TENSOR1##_dim >= 0; TENSOR1##_dim--) \
{ \
if(TENSOR1->size[TENSOR1##_dim] != 1) \
{ \
if(TENSOR1->stride[TENSOR1##_dim] == TENSOR1##_size) \
TENSOR1##_size *= TENSOR1->size[TENSOR1##_dim]; \
else \
{ \
TENSOR1##_isContiguous = 0; \
break; \
} \
} \
} \
TENSOR1##_counter = (long*)THAlloc(sizeof(long)*(TENSOR1##_dim+1)); \
for(TENSOR1##_i = 0; TENSOR1##_i <= TENSOR1##_dim; TENSOR1##_i++) \
TENSOR1##_counter[TENSOR1##_i] = 0; \
\
for(TENSOR2##_dim = TENSOR2->nDimension-1; TENSOR2##_dim >= 0; TENSOR2##_dim--) \
{ \
if(TENSOR2->size[TENSOR2##_dim] != 1) \
break; \
} \
TENSOR2##_stride = (TENSOR2##_dim == -1 ? 0 : TENSOR2->stride[TENSOR2##_dim]); \
TENSOR2##_size = 1; \
for(TENSOR2##_dim = TENSOR2->nDimension-1; TENSOR2##_dim >= 0; TENSOR2##_dim--) \
{ \
if(TENSOR2->size[TENSOR2##_dim] != 1) \
{ \
if(TENSOR2->stride[TENSOR2##_dim] == TENSOR2##_size) \
TENSOR2##_size *= TENSOR2->size[TENSOR2##_dim]; \
else \
{ \
TENSOR2##_isContiguous = 0; \
break; \
} \
} \
} \
Copy link
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Feels like there's a lot of code duplication here. Can't we just call THTensor_isContiguous? Same for counting the number of elements. We'd need the tensor type as parameter to the macro (in addition to the value type), but that can be easily added.

TENSOR2##_counter = (long*)THAlloc(sizeof(long)*(TENSOR2##_dim+1)); \
for(TENSOR2##_i = 0; TENSOR2##_i <= TENSOR2##_dim; TENSOR2##_i++) \
TENSOR2##_counter[TENSOR2##_i] = 0; \
} \
\
TENSOR1##_i = 0; \
TENSOR2##_i = 0; \
if(TENSOR1##_isContiguous & TENSOR2##_isContiguous) \
{ \
TYPE1 *TENSOR1##_dataT = TENSOR1->storage->data+TENSOR1->storageOffset; \
TYPE2 *TENSOR2##_dataT = TENSOR2->storage->data+TENSOR2->storageOffset; \
_Pragma("omp parallel for") \
for(TENSOR1##_i = 0; TENSOR1##_i < TENSOR1##_size; TENSOR1##_i++) /* 0 et pas TENSOR##_dim! */ \
{ \
TYPE1 *TENSOR1##_data = TENSOR1##_dataT + TENSOR1##_i; \
TYPE2 *TENSOR2##_data = TENSOR2##_dataT + TENSOR1##_i; \
CODE \
} \
TH_TENSOR_APPLY_hasFinished = 1; \
} \
TYPE1 *TENSOR1##_data = TENSOR1->storage->data+TENSOR1->storageOffset; \
TYPE2 *TENSOR2##_data = TENSOR2->storage->data+TENSOR2->storageOffset; \
while(!TH_TENSOR_APPLY_hasFinished) \
{ \
for(; TENSOR1##_i < TENSOR1##_size && TENSOR2##_i < TENSOR2##_size; TENSOR1##_i++, TENSOR2##_i++, TENSOR1##_data += TENSOR1##_stride, TENSOR2##_data += TENSOR2##_stride) /* 0 et pas TENSOR##_dim! */ \
{ \
CODE \
} \
\
if(TENSOR1##_i == TENSOR1##_size) \
{ \
if(TENSOR1##_dim == -1) \
break; \
\
TENSOR1##_data -= TENSOR1##_size*TENSOR1##_stride; \
for(TENSOR1##_i = TENSOR1##_dim; TENSOR1##_i >= 0; TENSOR1##_i--) \
{ \
TENSOR1##_counter[TENSOR1##_i]++; \
TENSOR1##_data += TENSOR1->stride[TENSOR1##_i]; \
\
if(TENSOR1##_counter[TENSOR1##_i] == TENSOR1->size[TENSOR1##_i]) \
{ \
if(TENSOR1##_i == 0) \
{ \
TH_TENSOR_APPLY_hasFinished = 1; \
break; \
} \
else \
{ \
TENSOR1##_data -= TENSOR1##_counter[TENSOR1##_i]*TENSOR1->stride[TENSOR1##_i]; \
TENSOR1##_counter[TENSOR1##_i] = 0; \
} \
} \
else \
break; \
} \
TENSOR1##_i = 0; \
} \
\
if(TENSOR2##_i == TENSOR2##_size) \
{ \
if(TENSOR2##_dim == -1) \
break; \
\
TENSOR2##_data -= TENSOR2##_size*TENSOR2##_stride; \
for(TENSOR2##_i = TENSOR2##_dim; TENSOR2##_i >= 0; TENSOR2##_i--) \
{ \
TENSOR2##_counter[TENSOR2##_i]++; \
TENSOR2##_data += TENSOR2->stride[TENSOR2##_i]; \
\
if(TENSOR2##_counter[TENSOR2##_i] == TENSOR2->size[TENSOR2##_i]) \
{ \
if(TENSOR2##_i == 0) \
{ \
TH_TENSOR_APPLY_hasFinished = 1; \
break; \
} \
else \
{ \
TENSOR2##_data -= TENSOR2##_counter[TENSOR2##_i]*TENSOR2->stride[TENSOR2##_i]; \
TENSOR2##_counter[TENSOR2##_i] = 0; \
} \
} \
else \
break; \
} \
TENSOR2##_i = 0; \
} \
} \
THFree(TENSOR1##_counter); \
THFree(TENSOR2##_counter); \
}


#endif
4 changes: 2 additions & 2 deletions lib/TH/generic/THTensorMath.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1803,14 +1803,14 @@ TENSOR_IMPLEMENT_LOGICAL(ne,!=)
void THTensor_(NAME)(THTensor *r_, THTensor *t) \
{ \
THTensor_(resizeAs)(r_, t); \
TH_TENSOR_APPLY2(real, t, real, r_, *r__data = CFUNC(*t_data);); \
TH_TENSOR_APPLY2_PARALLEL(real, t, real, r_, *r__data = CFUNC(*t_data);); \
} \

#define LAB_IMPLEMENT_BASIC_FUNCTION_VALUE(NAME, CFUNC) \
void THTensor_(NAME)(THTensor *r_, THTensor *t, real value) \
{ \
THTensor_(resizeAs)(r_, t); \
TH_TENSOR_APPLY2(real, t, real, r_, *r__data = CFUNC(*t_data, value);); \
TH_TENSOR_APPLY2_PARALLEL(real, t, real, r_, *r__data = CFUNC(*t_data, value);); \
} \

#if defined(TH_REAL_IS_LONG)
Expand Down