MATLAB PARALLEL COMPUTING TOOLBOX - S Guía de usuario descargar pdf (Pagina 282)

9 GPU Computing

9-24

These rules have some implications. The most notable is that every output from a kernel

must necessarily also be an input to the kernel, since the input allows the user to define

the size of the output (which follows from being unable to allocate memory on the GPU).

CUDAKernel Object Properties

When you create a kernel object without a terminating semicolon, or when you type the

object variable at the command line, MATLAB displays the kernel object properties. For

example:

k = parallel.gpu.CUDAKernel('conv.ptx','conv.cu')

k =

parallel.gpu.CUDAKernel handle

Package: parallel.gpu

Properties:

ThreadBlockSize: [1 1 1]

MaxThreadsPerBlock: 512

GridSize: [1 1 1]

SharedMemorySize: 0

EntryPoint: '_Z8theEntryPf'

MaxNumLHSArguments: 1

NumRHSArguments: 2

ArgumentTypes: {'in single vector' 'inout single vector'}

The properties of a kernel object control some of its execution behavior. Use dot notation

to alter those properties that can be changed.

For a descriptions of the object properties, see the CUDAKernel object reference page. A

typical reason for modifying the settable properties is to specify the number of threads,

as described below.

Specify Entry Points

If your PTX file contains multiple entry points, you can identify the particular kernel in

myfun.ptx that you want the kernel object k to refer to:

k = parallel.gpu.CUDAKernel('myfun.ptx','myfun.cu','myKernel1');

A single PTX file can contain multiple entry points to different kernels. Each of these

entry points has a unique name. These names are generally mangled (as in C++

mangling). However, when generated by nvcc the PTX name always contains the

original function name from the CU file. For example, if the CU file defines the kernel

function as

1 2 ... 277 278 279 280 281 282 283 284 285 286 287 ... 655 656

Sin comentarios

Weitere Produkte und Handbücher für CD Spieler Philips

Modelle	Dokumententyp
DVDQ40/022	Bedienungsanleitung Philips DVDQ40/022 User's Manual, 26 Seiten
AZ382/12	Bedienungsanleitung Philips AZ382/12 User's Manual, 2 Seiten
MZ1000	Bedienungsanleitung Philips MZ1000 User's Manual, 25 Seiten
EXP4318	Bedienungsanleitung Philips EXP4318 User's Manual, 82 Seiten
AZT3201	Bedienungsanleitung Philips AZT3201 User's Manual, 10 Seiten
ACT 7585	Bedienungsanleitung Philips ACT 7585 User's Manual, 65 Seiten
AZ3012/01	Bedienungsanleitung Philips AZ3012/01 User's Manual, 8 Seiten
eXpanium EXP212	Bedienungsanleitung Philips eXpanium EXP212 User's Manual, 2 Seiten
AZ 1565/00	Bedienungsanleitung Philips AZ 1565/00 User's Manual, 63 Seiten
AZT3200	Bedienungsanleitung Philips AZT3202/17 User manual, 14 Seiten
EXP2550/58	Bedienungsanleitung Philips EXP2550/58 User manual, 2 Seiten
EXP3360	Bedienungsanleitung Philips EXP3360 User's Manual, 12 Seiten
AZ7681	Bedienungsanleitung Philips AZ7681 User's Manual, 132 Seiten
EXP220/01	Bedienungsanleitung Philips EXP220/01 User manual, 5 Seiten
PORTABLE SPORT AUDIO PSA[CD	Bedienungsanleitung Philips PORTABLE SPORT AUDIO PSA[CD User's Manual, 14 Seiten
AX5311/17	Bedienungsanleitung Philips AX5311/17 User manual, 13 Seiten
AZ7182	Bedienungsanleitung Philips AZ7182 User's Manual, 2 Seiten
AZ2000/01	Bedienungsanleitung Philips AZ2000/01 User's Manual, 11 Seiten
AX5301/00C	Bedienungsanleitung Philips AX5301/00C User's Manual, 2 Seiten
AZ 1145	Bedienungsanleitung Philips AZ 1145 User's Manual, 53 Seiten