/
main.go
170 lines (140 loc) · 4.38 KB
/
main.go
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package main
import (
"flag"
"fmt"
"math/big"
"math/rand"
"os"
"strconv"
"strings"
"time"
"github.com/AMAURYCU/setpartition_unrank/parallelunranking"
"github.com/AMAURYCU/setpartition_unrank/precalcul"
"github.com/AMAURYCU/setpartition_unrank/statistic"
)
func listToString(liste []int64) string {
elements := make([]string, len(liste))
for i, v := range liste {
elements[i] = fmt.Sprintf("%d", v)
}
str := "[" + strings.Join(elements, ", ") + "]"
return str
}
func main() {
operation := flag.String("operation", "", "Specify operation: A, R or G")
mode := flag.String("mode", "", "Specify mode: P or S")
flag.Parse()
if *operation == "" {
printUsageAndExit()
}
switch *operation {
case "A":
if *mode == "" {
printUsageAndExit()
}
handleOperationA(*mode, flag.Args())
case "R":
if *mode == "" {
printUsageAndExit()
}
handleOperationR(*mode, flag.Args())
case "G":
handleOperationG(flag.Args())
default:
printUsageAndExit()
}
}
func handleOperationA(mode string, args []string) {
if len(args) != 2 {
fmt.Println("Error: Operation A requires exactly 2 arguments.")
printUsageAndExit()
}
n, err1 := strconv.Atoi(args[0])
k, err2 := strconv.Atoi(args[1])
if err1 != nil || err2 != nil {
fmt.Println("Error: Arguments for Operation A must be numeric.")
printUsageAndExit()
}
switch mode {
case "P":
c := parallelunranking.Stirling2Columns(n, k).Col1[n]
c.Sub(&c, big.NewInt(1))
for k2 := big.NewInt(0); k2.Cmp(&c) < 1; k2.Add(k2, big.NewInt(1)) {
fmt.Println(parallelunranking.UnrankDicho(n, k, *k2, 4), k2)
}
case "S":
c := parallelunranking.Stirling2Columns(n, k).Col1[n]
c.Sub(&c, big.NewInt(1))
precalcul.StirlingMatrix = statistic.StirlingTriangle(n, k)
for k2 := big.NewInt(0); k2.Cmp(&c) < 1; k2.Add(k2, big.NewInt(1)) {
fmt.Println(precalcul.UnrankDichoPre(n, k, *k2, 0), k2)
}
default:
fmt.Printf("Error: Invalid mode %s for operation A.\n", mode)
printUsageAndExit()
}
}
func handleOperationR(mode string, args []string) {
if len(args) != 2 {
fmt.Println("Error: Operation R requires exactly 2 arguments.")
printUsageAndExit()
}
n, err1 := strconv.Atoi(args[0])
k, err2 := strconv.Atoi(args[1])
if err1 != nil || err2 != nil {
fmt.Println("Error: Arguments for Operation R must be numeric.")
printUsageAndExit()
}
sg := rand.NewSource(time.Now().UnixNano())
rg := rand.New(sg)
var r big.Int
switch mode {
case "P":
c := parallelunranking.Stirling2Columns(n, k).Col1[n]
c.Sub(&c, big.NewInt(1))
r.Rand(rg, &c)
fmt.Println(parallelunranking.UnrankDicho(n, k, r, 4))
fmt.Println("temps calcul prev col", listToString(parallelunranking.TimePreviousColumn))
fmt.Println("-----------------------------")
fmt.Println("k", statistic.ListToString(parallelunranking.TimePreviousColumnWithK))
case "S":
precalcul.StirlingMatrix = statistic.StirlingTriangle(n, k)
r.Rand(rg, precalcul.StirlingMatrix[n][k])
fmt.Println(precalcul.UnrankDichoPre(n, k, r, 0), &r)
default:
fmt.Printf("Error: Invalid mode %s for operation R.\n", mode)
printUsageAndExit()
}
}
func handleOperationG(args []string) {
if len(args) != 3 {
fmt.Println("Error: Operation G requires exactly 3 arguments.")
printUsageAndExit()
}
n, err1 := strconv.Atoi(args[0])
k, err2 := strconv.Atoi(args[1])
r, err3 := strconv.Atoi(args[2])
if err1 != nil || err2 != nil || err3 != nil {
fmt.Println("Error: Arguments for Operation G must be numeric.")
printUsageAndExit()
}
statistic.Stat(n, k, r, true)
a, b, c := statistic.Graph3d(n, 10, 10, r)
file, err := os.Create("graph3d.g")
fmt.Println(err)
defer file.Close()
_, v := file.WriteString(statistic.PrintMatrix(a) + "// \n" + statistic.ListToString(b) + "// \n" + statistic.ListToString(c))
fmt.Println(v)
}
func printUsageAndExit() {
fmt.Println("Usage: program_name -operation [A/R/G] -mode [P/S] [arguments]")
fmt.Println("Operations:")
fmt.Println(" A: to generate all partitions of n1 in n2 non-empty disjoints subsets - Requires 2 numeric arguments")
fmt.Println(" R: to randomly pickup one partition of n1 in n2 non-empty disjoints subsets - Requires 2 numeric arguments")
fmt.Println(" G: to have an overview of the performance of the algorithm partitionning n1 in n2 non-empty disjoints subsets with n3 points - Requires 3 numeric arguments")
fmt.Println("Modes:")
fmt.Println(" P: parallel")
fmt.Println(" S: sequential")
flag.PrintDefaults()
os.Exit(1)
}