exa2pro/starpu-max: porting work to Maxeler DFE @ c39d1a57dbe1fe5ad72b0c27e8f0c2f4bdbdbb45

Samuel Thibault 1a83af1be4 Make sure users use starpu_conf_init to initialize starpu_conf. Fix some code		13 lat temu
..
variable_cuda.cu	d000709b48 Variable interface : standard test.	14 lat temu
variable_interface.c	1a83af1be4 Make sure users use starpu_conf_init to initialize starpu_conf. Fix some code	13 lat temu
variable_opencl.c	d6fd124ae4 Check the return value of starpu_opencl_unload_opencl().	13 lat temu
variable_opencl_kernel.cl	d000709b48 Variable interface : standard test.	14 lat temu