/
hoptimize.go
171 lines (147 loc) · 4.15 KB
/
hoptimize.go
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package cmd
import (
"context"
"encoding/json"
"fmt"
"github.com/c9s/bbgo/pkg/optimizer"
"github.com/fatih/color"
log "github.com/sirupsen/logrus"
"github.com/spf13/cobra"
"gopkg.in/yaml.v3"
"io/ioutil"
"os"
"os/signal"
"syscall"
"time"
)
func init() {
hoptimizeCmd.Flags().String("optimizer-config", "optimizer.yaml", "config file")
hoptimizeCmd.Flags().String("name", "", "assign an optimization session name")
hoptimizeCmd.Flags().Bool("json-keep-all", false, "keep all results of trials")
hoptimizeCmd.Flags().String("output", "output", "backtest report output directory")
hoptimizeCmd.Flags().Bool("json", false, "print optimizer metrics in json format")
hoptimizeCmd.Flags().Bool("tsv", false, "print optimizer metrics in csv format")
RootCmd.AddCommand(hoptimizeCmd)
}
var hoptimizeCmd = &cobra.Command{
Use: "hoptimize",
Short: "run hyperparameter optimizer (experimental)",
// SilenceUsage is an option to silence usage when an error occurs.
SilenceUsage: true,
RunE: func(cmd *cobra.Command, args []string) error {
optimizerConfigFilename, err := cmd.Flags().GetString("optimizer-config")
if err != nil {
return err
}
configFile, err := cmd.Flags().GetString("config")
if err != nil {
return err
}
optSessionName, err := cmd.Flags().GetString("name")
if err != nil {
return err
}
jsonKeepAll, err := cmd.Flags().GetBool("json-keep-all")
if err != nil {
return err
}
outputDirectory, err := cmd.Flags().GetString("output")
if err != nil {
return err
}
printJsonFormat, err := cmd.Flags().GetBool("json")
if err != nil {
return err
}
printTsvFormat, err := cmd.Flags().GetBool("tsv")
if err != nil {
return err
}
yamlBody, err := ioutil.ReadFile(configFile)
if err != nil {
return err
}
var obj map[string]interface{}
if err := yaml.Unmarshal(yamlBody, &obj); err != nil {
return err
}
delete(obj, "notifications")
delete(obj, "sync")
optConfig, err := optimizer.LoadConfig(optimizerConfigFilename)
if err != nil {
return err
}
// the config json template used for patch
configJson, err := json.MarshalIndent(obj, "", " ")
if err != nil {
return err
}
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
go func() {
c := make(chan os.Signal)
signal.Notify(c, syscall.SIGINT, syscall.SIGTERM)
<-c
log.Info("Early stop by manual cancelation.")
cancel()
}()
if len(optSessionName) == 0 {
optSessionName = fmt.Sprintf("bbgo-hpopt-%v", time.Now().UnixMilli())
}
tempDirNameFormat := fmt.Sprintf("%s-config-*", optSessionName)
configDir, err := os.MkdirTemp("", tempDirNameFormat)
if err != nil {
return err
}
executor := &optimizer.LocalProcessExecutor{
Config: optConfig.Executor.LocalExecutorConfig,
Bin: os.Args[0],
WorkDir: ".",
ConfigDir: configDir,
OutputDir: outputDirectory,
}
optz := &optimizer.HyperparameterOptimizer{
SessionName: optSessionName,
Config: optConfig,
}
if err := executor.Prepare(configJson); err != nil {
return err
}
report, err := optz.Run(ctx, executor, configJson)
log.Info("All test trial finished.")
if err != nil {
return err
}
if printJsonFormat {
if !jsonKeepAll {
report.Trials = nil
}
out, err := json.MarshalIndent(report, "", " ")
if err != nil {
return err
}
// print report JSON to stdout
fmt.Println(string(out))
} else if printTsvFormat {
if err := optimizer.FormatResultsTsv(os.Stdout, report.Parameters, report.Trials); err != nil {
return err
}
} else {
color.Green("OPTIMIZER REPORT")
color.Green("===============================================\n")
color.Green("SESSION NAME: %s\n", report.Name)
color.Green("OPTIMIZE OBJECTIVE: %s\n", report.Objective)
color.Green("BEST OBJECTIVE VALUE: %s\n", report.Best.Value)
color.Green("OPTIMAL PARAMETERS:")
for _, selectorConfig := range optConfig.Matrix {
label := selectorConfig.Label
if val, exist := report.Best.Parameters[label]; exist {
color.Green(" - %s: %v", label, val)
} else {
color.Red(" - %s: (invalid parameter definition)", label)
}
}
}
return nil
},
}