truncat STARPU_*_PIPELINE to STARPU_MAX_PIPELINE

src/drivers/cuda/driver_cuda.c

@@ -567,6 +567,11 @@ int _starpu_cuda_driver_init(struct _starpu_worker_set *worker_set)
 		_STARPU_DEBUG("cuda (%s) dev id %u worker %u thread is ready to run on CPU %d !\n", devname, devid, i, worker->bindid);
 
 		worker->pipeline_length = starpu_get_env_number_default("STARPU_CUDA_PIPELINE", 2);
+		if (worker->pipeline_length > STARPU_MAX_PIPELINE)
+		{
+			_STARPU_DISP("Warning: STARPU_CUDA_PIPELINE is %u, but STARPU_MAX_PIPELINE is only %u", worker->pipeline_length, STARPU_MAX_PIPELINE);
+			worker->pipeline_length = STARPU_MAX_PIPELINE;
+		}
 		_STARPU_TRACE_WORKER_INIT_END(worker_set->workers[i].workerid);
 	}
 

src/drivers/opencl/driver_opencl.c

@@ -597,6 +597,11 @@ int _starpu_opencl_driver_init(struct _starpu_worker *worker)
 	snprintf(worker->short_name, sizeof(worker->short_name), "OpenCL %u", devid);
 
 	worker->pipeline_length = starpu_get_env_number_default("STARPU_OPENCL_PIPELINE", 2);
+	if (worker->pipeline_length > STARPU_MAX_PIPELINE)
+	{
+		_STARPU_DISP("Warning: STARPU_OPENCL_PIPELINE is %u, but STARPU_MAX_PIPELINE is only %u", worker->pipeline_length, STARPU_MAX_PIPELINE);
+		worker->pipeline_length = STARPU_MAX_PIPELINE;
+	}
 
 	_STARPU_DEBUG("OpenCL (%s) dev id %d thread is ready to run on CPU %d !\n", devname, devid, worker->bindid);