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Does the OpenCL2.0 SVM support allocate memory for images?

Question asked by sky3551211 on Aug 6, 2014
Latest reply on Aug 27, 2014 by dipak

Does the OpenCL2.0 SVM support allocate memory for images?

We can test the SVM performance like:

 

d_a=(float*)clSVMAlloc(context,(CL_MEM_READ_WRITE|CL_MEM_SVM_FINE_GRAIN_BUFFER|CL_MEM_SVM_ATOMICS),size,0);

d_b=(float*)clSVMAlloc(context,(CL_MEM_READ_WRITE|CL_MEM_SVM_FINE_GRAIN_BUFFER|CL_MEM_SVM_ATOMICS),size,0);

d_c=(float*)clSVMAlloc(context,(CL_MEM_READ_WRITE|CL_MEM_SVM_FINE_GRAIN_BUFFER|CL_MEM_SVM_ATOMICS),size,0);

for(int i=0;i<size;i++)

{

   d_a[i]=Initial_value;

   d_b[i]=Initial_value;

}

clSetKernelArgSVMPointer(kernel, 0, d_a);

clSetKernelArgSVMPointer(kernel, 0, d_b);

clSetKernelArgSVMPointer(kernel, 0, d_c);

 

The SVM performance has been verified good in the example of calculation of a vector,but the clSVMAlloc() cannot allocate memory for images,

how should we do to utilize the SVM for image processing?

Thank you!

 

 

The test device is like:

 

        CL_DEVICE_NAME: AMD A10-7850 APU with Radeon (TM) R7 Graphics @ 3.70GHz

        CL_DEVICE_PROFILE:      FULL_PROFILE

        CL_DEVICE_VERSION:      OpenCL 2.0 (Build 8228)

        CL_DEVICE_OPENCL_C_VERSION:     OpenCL C 2.0

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