Julia Distributed.remotecall_fetch方法用法及代码示例

remotecall_fetch(f, id::Integer, args...; kwargs...)

在一条消息中执行fetch(remotecall(...))。关键字参数(如果有)将传递给 f 。任何远程异常都会在 RemoteException 中捕获并抛出。

另请参见 fetch 和 remotecall 。

例子

$ julia -p 2

julia> remotecall_fetch(sqrt, 2, 4)
2.0

julia> remotecall_fetch(sqrt, 2, -4)
ERROR: On worker 2:
DomainError with -4.0:
sqrt will only return a complex result if called with a complex argument. Try sqrt(Complex(x)).
...

remotecall_fetch(f, pool::AbstractWorkerPool, args...; kwargs...) -> result

remotecall_fetch(f, pid, ....) 的 WorkerPool 变体。等待并从pool 获取一个空闲的worker，并对其执行remotecall_fetch。

例子

$ julia -p 3

julia> wp = WorkerPool([2, 3]);

julia> A = rand(3000);

julia> remotecall_fetch(maximum, wp, A)
0.9995177101692958