topic Out of memory error from clBuildProgram in OpenCL* for CPU

Out of memory error from clBuildProgram

Jorge_R_3 — Wed, 16 Sep 2015 00:13:11 GMT

After adding too many lines to my kernels, clBuildProgram() is returning the error CL_BUILD_PROGRAM_FAILURE from the driver. clGetProgramBuildInfo() returns the string "Error: out of memory." and nothing else. If I remove enough lines of code from my OpenCL code, the error goes away. If I change the device from CL_DEVICE_TYPE_GPU to CL_DEVICE_TYPE_CPU the error goes away. The total number of lines of code in my program is about 900.

Processor: 2.2 Ghz Intel Core i7

Graphics: Intel Iris Pro 1536MB

OSX 10.10.5

I'm using whatever comes standard with that version of OSX, I haven't installed anything else, not even XCode.

My problem seems to be identical to that of this person: https://software.intel.com/en-us/forums/opencl/topic/559994

I'm trying to get clearance to post the source code, but in the meantime any ideas?

Jorge,

Robert_I_Intel — Wed, 16 Sep 2015 00:21:43 GMT

Jorge,

OSX is not the platform we support on this forum: you will need to submit the issue to the Apple folks. However, if you can share your kernel (or send me a private message with the kernel attached) I can try to see if the issue is reproducible on the Windows driver. OSX driver shares some code with Windows driver, but Apple does add some 'special sauce'.

All of my code is here:

Jorge_R_3 — Wed, 16 Sep 2015 16:47:43 GMT

All of my code is here:

https://dl.dropboxusercontent.com/u/4205810/deleteme/rccl.tgz

It builds from a bash script, not a makefile or anything. If you can't get it to build that way, you can try just building the kernels on your own. The kernels are in a few separate files, you should be able to just concatenate them into one big file in the following order: shared_structures.h, shared_operators.c, cpoly.cl, jacobi.cl, rc.cl

Thanks.

Jorge,

Robert_I_Intel — Mon, 12 Oct 2015 23:07:54 GMT

Jorge,

Just tested your code on the latest driver on Windows 10: your code builds successfully for both CPU and GPU. So come to the dark side :)

Thanks for the info :)

Jorge_R_3 — Tue, 13 Oct 2015 00:14:52 GMT

Thanks for the info :)