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OpenCL stall on Apollo Lake GPU

Summary

When I run my app and select the GPU OpenCL device, the feeder thread stalls inside a blocking call to clEnqueueMapBuffer(). 

 

Preamble

Authored by tony w. Last updated on 01/17/2017 - 07:05
Forum topic

SVM Trouble

Hello, everyone!

I've some problem with Shared Virtual Memory and its buffers.

I've got structure like this:

Authored by Alexander M. Last updated on 01/17/2017 - 03:14
Forum topic

Could you please escalate the memory leak issue I'm having? [ATTACHED A MORE SIMPLIFIED KERNEL]?

Hi,

From the issue: [NOT SOLVED] ioc64: simple kernel killed.

Authored by mike p. Last updated on 01/15/2017 - 07:22
Forum topic

Articles Index -- check here for the latest guides and info

Guide to reporting issues: https://software.intel.com/en-us/articles/ocl-issue-reporting-guide

Authored by Jeffrey M. (Intel) Last updated on 01/11/2017 - 16:54
Article

Announcing Intel® Graphics Performance Analyzers Version 2016 R4

Intel® Graphics Performance Analyzers (Intel® GPA) Release 2016 R4 includes the latest toolset featuring support for - DirectX* 9, 10, 10.1, 11.0/11.1/11.2/12/12.1 workloads on Windows* - OpenGL* ES 1.X/2.X/3.0/3.1/3.2 workloads on Android - OpenGL* 3.2, 3.3, 4.0, 4.1 Core Profile workloads on Ubuntu*
Authored by Liudmila Mantrova (Intel) Last updated on 01/10/2017 - 15:55
Forum topic

GPU HD4600 OpenCL SPIR compilation problem

I use OpenCL SPIR for two algorithms, each one has templated functions for uchar, ushort, uint, float and double (templates are implemented via defines/includes).

Authored by Nikolay P. Last updated on 01/10/2017 - 08:29
Responsive Landing Page

Intel® SDK for OpenCL™ Applications

Authored by Martin, Kay Last updated on 01/09/2017 - 10:52
Forum topic

Is there any GEN-friendly idiom for communicating subgroup uniformity?

It seems to me that GEN might benefit more from detecting "subgroup uniform" values than other architectures because of its

Authored by allanmac Last updated on 01/06/2017 - 14:49
Forum topic

Does the Kaby Lake OpenCL 2.1 HD Graphics driver support SPIR-V?

I see that Kaby Lake IGPs have OpenCL 2.1 support.

Does this imply that SPIR-V is supported on that platform?

Is there any plan to bring 2.1 support to GEN9 and GEN8?

Authored by allanmac Last updated on 01/06/2017 - 10:16
For more complete information about compiler optimizations, see our Optimization Notice.