我有以下两部分代码,第一部分是使用多处理的代码,第二部分是使用mpi4py的代码
多槽一
def simple(data): #(np.arrray) # its a function from other module
result = do something with the data
return result #(np.arrray)
def lesssimple(data, num):
num_cores = num
inputs = tqdm(x)
processed_list = Parallel(n_jobs=num_cores)(delayed(simple)(i, num) for i in inputs)
return processed_list
Mpi4py-one
comm = MPI.COMM_WORLD
rank = comm.Get_rank()
size = comm.Get_size()
if rank == 0:
data = np.array_split(dat, size)
else:
data = None
recvbuf = comm.scatter(data, root=0)
result = []
for item in recvbuf:
result.append(somefunction(item))
newData = comm.gather(result,root=0)
if rank == 0:
with open('result.data', 'wb') as filehandle:
pickle.dump(newData, filehandle)
我的问题是,如果我想在Mpi4py指定的每个节点中创建一个多处理作业,可以像下面这样简单地组合它们吗?(对于列表中的每个数据,计算是独立的,不需要通信)
#all the others the same with mpi4py
result = []
for item in recvbuf:
result.append(lesssimple(data, num)) ### plugging the multiprocessing function into this part
#all the others the same with mpi4py
目前没有回答
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