I'm developing an asynchronous Windows application and have noticed a strange loss of system memory. My application internally tracks memory usage, and when not using OpenCL at all it matches what is reported by the system through taskmgr. What's curious is the memory leak is more or less depending on what OpenCL version and device I use. Summarizing what taskmgr reports:
No OpenCL (vanilla C code) - ~8MB
OpenCL 2.0 Experimental CPU ~ 1.2 GB
OpenCL 1.2 CPU ~ 350 MB
OpenCL 1.2 GPU (HD 4600) ~ 40 MB
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I don't have Broadwell hardware in front of me yet so can you tell me which fine-grain SVM capabilities are supported in the latest driver on Gen8 devices? Just FINE_GRAIN_BUFFER?
If FINE_GRAIN_SYSTEM is supported then can an 8-16GB host address space be shared?
The OpenCL 2.0 SVM article does a nice job summarizing the capability bits. Can you list which are supported in the .4080 driver and which might eventually be supported?
I asked a similar question last year and want to know if there is any way to coax the compiler into mapping "vectorized" code onto the IGP?
More specifically, I'd like to launch a workgroup where each work item is a SIMD4 or SIMD4x2 vector and the number of vector registers per work item might approach 128.
I want to learn how to build native OpenCL kernel by assembly and load this kernel. I am already able to generate assembly by the OpenCL kernel and compile it then:
ioc64 -cmd=build -input=kernel.cl -device=co -asm=file.s icc -mmic -c file.s -o kernel
But how do I load this kernel into OpenCL runtime. My current approach did not work:
I am implementing a number of kernels. I have a requirement that these are built into a single .ir. However. I would like to keep my kernels in separate .cl files.
Is it possible, via ioc32 cmd line, to build separate cl files into a single .ir
i installed "intel_code_builder_for_opencl_2015_ubuntu_220.127.116.11_x64.tgz" on Ubuntu Linux.
My CPU is an Intel(R) Core(TM)2 Duo CPU T8300.
I cannot find out whether the drivers support this CPU or not based on the documentation. It only states Intel® CoreTM Processors.
I successfully get a plattform id and device id. I also can query the device capabilities with clGetDeviceInfo. Also clGetDeviceInfo reports true for CL_DEVICE_AVAILABLE.
But clCreateContext fails with CL_DEVICE_NOT_AVAILABLE.
So is this CPU supported?
It would be great if there was a kernel debugger for HD Graphics.
I have engaged in OpenCL development for three years.
Today I tried the new release OpenCL code builder.
It is disappointing somehow, for the following reason: