Intel® FPGA SDK for OpenCL™ Standard Edition: Programming Guide

ID 683342
Date 4/22/2019
Document Table of Contents

5.11. Enabling Double Precision Floating-Point Operations

The Intel® FPGA SDK for OpenCL™ offers preliminary support for all double precision floating-point functions.

Before declaring any double precision floating-point data type in your OpenCL kernel, include the following OPENCL EXTENSION pragma in your kernel code:

#pragma OPENCL EXTENSION cl_khr_fp64 : enable