Package org.lwjgl.opencl

Class QCOMEXTHostPtrIOCoherent

java.lang.Object

org.lwjgl.opencl.QCOMEXTHostPtrIOCoherent

public final class QCOMEXTHostPtrIOCoherent
extends Object

Native bindings to the qcom_ext_host_ptr_iocoherent extension.

This extension extends the functionality provided by cl_qcom_ext_host_ptr by adding a new host cache policy. It allows applications to specify a new value, MEM_HOST_IOCOHERENT_QCOM, for cl_mem_ext_host_ptr::host_cache_policy. When the application selects this value for host cache policy, the imported allocation is mapped as io-coherent for the GPU. This in turn avoids the need for the OpenCL driver to explicitly issue CPU cache operation calls. Although GPU performance can be slower in some cases for io-coherent allocations, the overall performance can improve due to the elimination of explicit CPU cache operations.

Requires CL11 and qcom_ext_host_ptr.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	CL_MEM_HOST_IOCOHERENT_QCOM	New accepted value for cl_mem_ext_host_ptr::host_cache_policy.

Method Summary

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

CL_MEM_HOST_IOCOHERENT_QCOM

public static final int CL_MEM_HOST_IOCOHERENT_QCOM

New accepted value for cl_mem_ext_host_ptr::host_cache_policy.

See Also:

• Constant Field Values