(原)torch中threads的addjob函数使用方法
转载请注明出处:
http://www.cnblogs.com/darkknightzh/p/6549452.html
参考网址:
https://github.com/torch/threads#examples
1. addjob简单示例
参考网址中给出了torch中threads的addjob函数使用方法:
local threads = require 'threads' local nthread = 4 local njob = 10 local msg = "hello from a satellite thread" local pool = threads.Threads( nthread, function(threadid) print('starting a new thread/state number ' .. threadid) gmsg = msg -- get it the msg upvalue and store it in thread state end ) local jobdone = 0 for i=1,njob do pool:addjob( function() -- note1 print(string.format('%s -- thread ID is %x', gmsg, __threadid)) return __threadid end, function(id) print(string.format("task %d finished (ran on thread ID %x)", i, id)) jobdone = jobdone + 1 end -- note2 ) end pool:synchronize() print(string.format('%d jobs done', jobdone)) pool:terminate()
上面程序是一个简单的例子。
2. addjob传入参数
note1的地方,当该函数无输入参数时,直接那样写,同时note2处什么也不写。
如果note1的function需要传入参数,可以写上参数列表,同时在note2处加上参数。如下所示:
pool:addjob( function(variable1, variable2, bariable3) -- note1 -- code … end, function(id) -- code … end, var1, -- note2 var2, var3 )
3. addjob函数说明
addjob函数如下:
Threads:addjob([id], callback, [endcallback], [...])
callback为在队列线程中执行的函数,endcallback为在主线程中执行的函数。
posted on 2017-03-14 17:00 darkknightzh 阅读(816) 评论(0) 编辑 收藏 举报