in cluster-trace-gpu-v2020/simulator/node.py [0:0]
def release_gpus(self, num_gpus=0):
'''
release using gpus back to free list
'''
if self.idl_gpus + num_gpus > self.num_gpus:
self.idl_gpus = self.num_gpus
return False
else:
self.idl_gpus += num_gpus
return True