Example #1
0
File: init.go Project: shenyp09/mx3
func Init() {
	if cudaCtx != 0 {
		return // already inited
	}
	var flag uint
	switch *Flag_sched {
	default:
		panic("sched flag: expecting auto,spin,yield or sync: " + *Flag_sched)
	case "auto":
		flag = cu.CTX_SCHED_AUTO
	case "spin":
		flag = cu.CTX_SCHED_SPIN
	case "yield":
		flag = cu.CTX_SCHED_YIELD
	case "sync":
		flag = cu.CTX_BLOCKING_SYNC
	}
	tryCuInit()
	dev := cu.Device(*Flag_gpu)
	cudaCtx = cu.CtxCreate(flag, dev)
	M, m := dev.ComputeCapability()
	concurrent := dev.Attribute(cu.CONCURRENT_KERNELS)
	log.Print("CUDA ", float32(cu.Version())/1000, " ",
		dev.Name(), "(", (dev.TotalMem())/(1024*1024), "MB) ",
		"compute ", M, ".", m,
		" concurrent: ", concurrent == 1, "\n")
	cudaCC = 10*M + m
	log.Println("set preference for device L1 cache")
	cuda.DeviceSetCacheConfig(cuda.FUNC_CACHE_PREFER_L1)
	initStreampool()
}
Example #2
0
func InitCuda() {
	runtime.LockOSThread()
	cu.Init(0)
	cu.CtxCreate(cu.CTX_SCHED_AUTO, 0).SetCurrent()
}
Example #3
0
// needed for all other tests.
func init() {
	cu.Init(0)
	ctx := cu.CtxCreate(cu.CTX_SCHED_AUTO, 0)
	cu.CtxSetCurrent(ctx)
	fmt.Println("Created CUDA context")
}