OpenCL Buffer Array - clEnqueueWriteBuffer -36

Question

as I'm working on a easy to use OpenCL implementation I ran into the error -36 clEnqueueWriteBuffer. I'm using the OpenCL C++ Wrapper for spec 1.1 with enabled throwing exceptions. So I have this function - I've commented, what it should do (or what I think it should do..):

void createBuffers(std::vector< OpType > arrays) {
        for (int i = 0; i < arrays.size(); i++) {
            buffer.push_back( cl::Buffer(contextCL, CL_MEM_READ_WRITE, sizeof(OpType)*length)); //creating the buffers depending on how big arrays is - buffer has been declared as cl::vector<cl::Buffer> buffer;

//here the Exception is thrown
            queueCL.enqueueWriteBuffer(buffer[i], CL_TRUE, 0, sizeof(OpType)*length,arrays[i]); //writing the contents of arrays[i] (arrays[i] is a C Array) to the buffer i

            kernelCL.setArg(i, buffer[i]);
        }
        result_buffer = cl::Buffer(contextCL, CL_MEM_WRITE_ONLY, length*sizeof(OpType));
        kernelCL.setArg(arrays.size(), result_buffer);
    }

Should this be able to work? For further information just ask!
Thank you in advance,
- fodinabor

Answer 1

Well error -36 is CL_INVALID_COMMAND_QUEUE. You can't fix it inside the function. The command queue is already not created when you call it.

The real error is elsewhere. It is just showing up there.