title: OpenCL: Writing to pointer in main memory
body: <p>Is it possible, using OpenCL's DMA capabilities, to write to a main memory address that is passed into the cl program? I understand doing so would likely break the program, but the intent here is to run a GPU process and then overwrite the address space of the CPU program used to run it, so breakage is expected. </p>
  
  <p>Thanks!</p>