主机是否等待设备完成执行？例如,程序具有如下结构
// cpu code segment
// data transfer from host to device
QUESTION - WILL CPU WAIT FOR DEVICE TO FINISH TRANSFER? IF NO, IS IT POSSIBLE? IF YES, HOW?
// kernel launch
QUESTION - WILL CPU WAIT FOR DEVICE TO LET IT FINISH KERNEL EXECUTION (CONSIDERING KERNEL EXECUTION WILL TAKE NOTABLE TIME say-5 sec)? IF NO, IS IT POSSIBLE? IF YES, HOW?
// data transfer from device to host
// program terminates after printing some information
cuda ×1