User`s guide

xii Contents

Program Communicating Jobs

Program Communicating Jobs . . . . . . . . . . . . . . . . . . . . . . . . 8-2

Program Communicating Jobs for a Supported Scheduler . 8-4

Schedulers and Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4

Code the Task Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4

Code in the Client . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5

Program Communicating Jobs for a Generic Scheduler . . . 8-7

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7

Code in the Client . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7

Further Notes on Communicating Jobs . . . . . . . . . . . . . . . . 8-10

Number of Tasks in a Communicating Job . . . . . . . . . . . . . 8-10

Avoid Deadlock and Other Dependency Errors . . . . . . . . . . 8-10

GPU Computing

GPU Capabilities and Performance . . . . . . . . . . . . . . . . . . . . 9-2

Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

Performance Benchmarking . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

Establish Arrays on a GPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3

Transfer Arrays Between Workspace and GPU . . . . . . . . . . . 9-3

Create GPU Arrays Directly . . . . . . . . . . . . . . . . . . . . . . . . . 9-4

Examine gpuArray Characteristics . . . . . . . . . . . . . . . . . . . . 9-7

Run Built-In Functions on a GPU . . . . . . . . . . . . . . . . . . . . . . 9-8

MATLAB Functions with gpuArray Arguments . . . . . . . . . . . 9-8

Example: Functions with gpuArray Input and Output . . . . . . 9-9

Sparse Arrays on a GPU . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-10

Considerations for Complex Numbers . . . . . . . . . . . . . . . . . 9-11

Run Element-wise MATLAB Code on GPU . . . . . . . . . . . . . . 9-13

MATLAB Code vs. gpuArray Objects . . . . . . . . . . . . . . . . . . 9-13

Run Your MATLAB Functions on a GPU . . . . . . . . . . . . . . 9-13