Last change
on this file since 4d689e2 was
e2f827f,
checked in by caparson <caparson@…>, 17 months ago
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added go counterpart to cfa benchmarks
|
-
Property mode set to
100644
|
File size:
1.2 KB
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Rev | Line | |
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[e2f827f] | 1 | package main |
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| 2 | |
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| 3 | import ( |
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| 4 | "fmt" |
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| 5 | "time" |
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| 6 | "runtime" |
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| 7 | "sync" |
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| 8 | "os" |
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| 9 | "strconv" |
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| 10 | ) |
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| 11 | |
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| 12 | var done bool = false; |
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| 13 | var total_operations uint64 = 0 |
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| 14 | var Processors int = 1 |
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| 15 | var m sync.Mutex |
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| 16 | |
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| 17 | var taskJoin chan int = make(chan int, 2) |
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| 18 | |
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| 19 | func Task( chans [] chan uint64, id int ) { |
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| 20 | var count uint64 = 0 |
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| 21 | right := (id + 1) % Processors |
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| 22 | for { |
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| 23 | if done { break } |
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| 24 | <-chans[id] |
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| 25 | chans[right]<-0 |
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| 26 | count++; |
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| 27 | } |
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| 28 | m.Lock() |
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| 29 | total_operations += count |
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| 30 | m.Unlock() |
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| 31 | taskJoin <- 0 |
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| 32 | } |
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| 33 | |
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| 34 | func main() { |
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| 35 | switch len( os.Args ) { |
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| 36 | case 2: |
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| 37 | if os.Args[1] != "d" { // default ? |
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| 38 | Processors, _ = strconv.Atoi( os.Args[1] ) |
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| 39 | } // if |
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| 40 | case 1: // use defaults |
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| 41 | default: |
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| 42 | fmt.Printf( "Invalid args" ); |
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| 43 | os.Exit( 1 ); |
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| 44 | } // switch |
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| 45 | runtime.GOMAXPROCS( Processors ); |
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| 46 | |
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| 47 | taskJoin = make(chan int, Processors) |
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| 48 | chans := make( [] chan uint64, Processors ) |
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| 49 | for i := range chans { |
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| 50 | chans[i] = make(chan uint64, 3) |
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| 51 | } |
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| 52 | |
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| 53 | chans[0] <- 0 |
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| 54 | |
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| 55 | for i := 0; i < Processors; i++ { |
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| 56 | go Task( chans, i ) |
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| 57 | } |
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| 58 | |
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| 59 | // wait 10 seconds |
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| 60 | time.Sleep(time.Second * 10) |
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| 61 | // fmt.Println("prod done\n") |
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| 62 | done = true |
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| 63 | |
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| 64 | for i := 0; i < Processors; i++ { |
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| 65 | chans[i] <- 0 |
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| 66 | } |
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| 67 | for i := 0; i < Processors; i++ { |
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| 68 | <-taskJoin |
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| 69 | } |
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| 70 | |
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| 71 | fmt.Println(total_operations) |
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| 72 | } |
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