// Can be run in 3 ways:
// 1) Sequential (e.g., go run wc.go master x.txt sequential)
// 2) Master (e.g., go run wc.go master x.txt localhost:7777)
// 3) Worker (e.g., go run wc.go worker localhost:7777 localhost:7778 &)
func main() {
if len(os.Args) != 4 {
fmt.Printf("%s: see usage comments in file\n", os.Args[0])
} else if os.Args[1] == "master" {
if os.Args[3] == "sequential" {
mapreduce.RunSingle(5, 3, os.Args[2], Map, Reduce)
} else {
mr := mapreduce.MakeMapReduce(5, 3, os.Args[2], os.Args[3])
// Wait until MR is done
<-mr.DoneChannel
}
} else {
mapreduce.RunWorker(os.Args[2], os.Args[3], Map, Reduce, 100)
}
}
// Can be run in 3 ways:
// 1) Sequential (e.g., go run wc.go master sequential x1.txt .. xN.txt)
// 2) Master (e.g., go run wc.go master localhost:7777 x1.txt .. xN.txt)
// 3) Worker (e.g., go run wc.go worker localhost:7777 localhost:7778 &)
func main() {
if len(os.Args) < 4 {
fmt.Printf("%s: see usage comments in file\n", os.Args[0])
} else if os.Args[1] == "master" {
var mr *mapreduce.Master
if os.Args[2] == "sequential" {
mr = mapreduce.Sequential("wcseq", os.Args[3:], 3, mapF, reduceF)
} else {
mr = mapreduce.Distributed("wcseq", os.Args[3:], 3, os.Args[2])
}
mr.Wait()
} else {
mapreduce.RunWorker(os.Args[2], os.Args[3], mapF, reduceF, 100)
}
}