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cuda.devices: "distribute-jobs" utility word that determines grid and block size for a job based on per-thread shared memory requirements and max block size

db4
Joe Groff 2010-05-07 18:02:42 -07:00
parent 097100cb12
commit f26a5836e6
4 changed files with 45 additions and 18 deletions
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14
extra/cuda/cuda.factor
View File

@ -7,7 +7,7 @@ destructors fry init io io.backend io.encodings.string
io.encodings.utf8 kernel lexer locals macros math math.parser
namespaces nested-comments opengl.gl.extensions parser
prettyprint quotations sequences words cuda.libraries ;
QUALIFIED-WITH: alien.c-types a
QUALIFIED-WITH: alien.c-types c
IN: cuda
TUPLE: launcher
@ -41,11 +41,11 @@ dim-grid dim-block shared-size stream ;
: c-type>cuda-setter ( c-type -- n cuda-type )
{
{ [ dup a:int = ] [ drop 4 [ cuda-int* ] ] }
{ [ dup a:uint = ] [ drop 4 [ cuda-int* ] ] }
{ [ dup a:float = ] [ drop 4 [ cuda-float* ] ] }
{ [ dup a:pointer? ] [ drop 4 [ cuda-int* ] ] }
{ [ dup a:void* = ] [ drop 4 [ cuda-int* ] ] }
{ [ dup c:int = ] [ drop 4 [ cuda-int* ] ] }
{ [ dup c:uint = ] [ drop 4 [ cuda-int* ] ] }
{ [ dup c:float = ] [ drop 4 [ cuda-float* ] ] }
{ [ dup c:pointer? ] [ drop 4 [ cuda-int* ] ] }
{ [ dup c:void* = ] [ drop 4 [ cuda-int* ] ] }
} cond ;
<PRIVATE
@ -85,5 +85,5 @@ MACRO: cuda-arguments ( c-types -- quot: ( args... function -- ) )
[ run-function-launcher ] 2bi
]
]
[ 2nip \ function-launcher suffix a:void function-effect ]
[ 2nip \ function-launcher suffix c:void function-effect ]
3bi define-declared ;

13
extra/cuda/devices/devices-tests.factor Normal file
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@ -0,0 +1,13 @@
! (c)2010 Joe Groff bsd license
USING: cuda.devices tools.test ;
IN: cuda.devices.tests
[ 1 5 100 ] [ 5 20 100 10 (distribute-jobs) ] unit-test
[ 2 5 100 ] [ 10 20 100 10 (distribute-jobs) ] unit-test
[ 2 5 100 ] [ 10 20 200 5 (distribute-jobs) ] unit-test
[ 2 5 100 ] [ 10 20 300 6 (distribute-jobs) ] unit-test
[ 2 6 120 ] [ 11 20 300 6 (distribute-jobs) ] unit-test
[ 1 10 200 ] [ 10 20 200 10 (distribute-jobs) ] unit-test
[ 1 10 0 ] [ 10 0 200 10 (distribute-jobs) ] unit-test
[ 2 5 0 ] [ 10 0 200 9 (distribute-jobs) ] unit-test

30
extra/cuda/devices/devices.factor
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@ -1,9 +1,9 @@
! Copyright (C) 2010 Doug Coleman.
! See http://factorcode.org/license.txt for BSD license.
USING: alien.c-types alien.data alien.strings arrays assocs
byte-arrays classes.struct combinators cuda cuda.ffi cuda.utils
fry io io.encodings.utf8 kernel math.parser prettyprint
sequences ;
USING: accessors alien.c-types alien.data alien.strings arrays
assocs byte-arrays classes.struct combinators cuda cuda.ffi
cuda.utils fry io io.encodings.utf8 kernel locals math
math.order math.parser namespaces prettyprint sequences ;
IN: cuda.devices
: #cuda-devices ( -- n )
@ -19,9 +19,8 @@ IN: cuda.devices
[ enumerate-cuda-devices ] dip '[ <launcher> _ with-cuda ] each ; inline
: cuda-device-properties ( n -- properties )
[ CUdevprop <c-object> ] dip
[ cuDeviceGetProperties cuda-error ] 2keep drop
CUdevprop memory>struct ;
[ CUdevprop <struct> ] dip
[ cuDeviceGetProperties cuda-error ] 2keep drop ;
: cuda-devices ( -- assoc )
enumerate-cuda-devices [ dup cuda-device-properties ] { } map>assoc ;
@ -68,3 +67,20 @@ IN: cuda.devices
"CUDA Version: " write cuda-version number>string print nl
#cuda-devices iota [ nl ] [ cuda-device. ] interleave ;
: up/i ( x y -- z )
[ 1 - + ] keep /i ; inline
:: (distribute-jobs) ( job-count per-job-shared max-shared-size max-block-size
-- grid-size block-size per-block-shared )
per-job-shared [ max-block-size ] [ max-shared-size swap /i max-block-size min ] if-zero
job-count min :> job-max-block-size
job-count job-max-block-size up/i :> grid-size
job-count grid-size up/i :> block-size
block-size per-job-shared * :> per-block-shared
grid-size block-size per-block-shared ; inline
: distribute-jobs ( job-count per-job-shared -- grid-size block-size per-block-shared )
cuda-device get cuda-device-properties
[ sharedMemPerBlock>> ] [ maxThreadsDim>> ] bi
(distribute-jobs) ; inline

6
extra/cuda/utils/utils.factor
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@ -1,8 +1,8 @@
! Copyright (C) 2010 Doug Coleman.
! See http://factorcode.org/license.txt for BSD license.
USING: accessors alien.c-types alien.data alien.strings arrays
assocs byte-arrays classes.struct combinators cuda.ffi io
io.backend io.encodings.utf8 kernel math.parser namespaces
assocs byte-arrays classes.struct combinators cuda.devices cuda.ffi
io io.backend io.encodings.utf8 kernel math.parser namespaces
prettyprint sequences ;
IN: cuda.utils
@ -92,5 +92,3 @@ ERROR: throw-cuda-error n ;
: function-shared-size ( n -- )
[ cuda-function get ] dip
cuFuncSetSharedSize cuda-error ;
: distribute-jobs ( job-count per-job-shared -- grid-size block-size per-block-shared )