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How can I use local memory of altera opencl kernel?.

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chounght

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I use DE1-SoC board.
and I use OpenCL SDK.

I read Optimizing Local Memory Accesses of Altera SDK for OpenCL Best Prasctices Guides.
and I can see that I can use local memory used by clSetKernelArg.


so I write my source as below


/////////kernel source////////
Code: 
__kernel void test_kernel(__attribute __((local_mem_size(2048)))__local int const * restrict table)
{
...
}


/////////my source////////
Code: 
status = clSetKernelArg(kernel[i], argi++, 256*sizeof(cl_mem), &table[i]);



1) I compile my kernel and I see warning massage as bellow.
Compiler Warning: Pointer to local memory argument with no store to it.


2)and execute my program. I can see error massage as bellow.
ERROR: CL_INVALID_ARG_VALUE




How can I use local memory used clSetKernelArg????


thanks.
 
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