// open writer and write header
func (t *DataTable) init() {
if t.inited() {
return
}
f, err := httpfs.Create(OD() + t.name + ".txt")
util.FatalErr(err)
t.output = f
// write header
fprint(t, "# t (s)")
for _, o := range t.outputs {
if o.NComp() == 1 {
fprint(t, "\t", o.Name(), " (", o.Unit(), ")")
} else {
for c := 0; c < o.NComp(); c++ {
fprint(t, "\t", o.Name()+string('x'+c), " (", o.Unit(), ")")
}
}
}
fprintln(t)
t.Flush()
// periodically flush so GUI shows graph,
// but don't flush after every output for performance
// (httpfs flush is expensive)
go func() {
for {
time.Sleep(TableAutoflushRate * time.Second)
Table.flush()
}
}()
}
func initLog() {
if logfile != nil {
panic("log already inited")
}
// open log file and flush what was logged before the file existed
var err error
logfile, err = httpfs.Create(OD() + "log.txt")
if err != nil {
panic(err)
}
util.FatalErr(err)
logfile.Write(([]byte)(hist))
logfile.Write([]byte{'\n'})
}
// synchronous save
func saveAs_sync(fname string, s *data.Slice, info data.Meta, format OutputFormat) {
f, err := httpfs.Create(fname)
util.FatalErr(err)
defer f.Close()
switch format {
case OVF1_TEXT:
oommf.WriteOVF1(f, s, info, "text")
case OVF1_BINARY:
oommf.WriteOVF1(f, s, info, "binary 4")
case OVF2_TEXT:
oommf.WriteOVF2(f, s, info, "text")
case OVF2_BINARY:
oommf.WriteOVF2(f, s, info, "binary 4")
case DUMP:
dump.Write(f, s, info)
default:
panic("invalid output format")
}
}
// prepare exec.Cmd to run mumax3 compute process
func NewProcess(ID string, gpu int, webAddr string) *Process {
// prepare command
inputURL := "http://" + ID
command := *flag_mumax
gpuFlag := fmt.Sprint(`-gpu=`, gpu)
httpFlag := fmt.Sprint(`-http=`, webAddr)
cacheFlag := fmt.Sprint(`-cache=`, *flag_cachedir)
forceFlag := `-f=0`
cmd := exec.Command(command, gpuFlag, httpFlag, cacheFlag, forceFlag, inputURL)
// Pipe stdout, stderr to log file over httpfs
outDir := util.NoExt(inputURL) + ".out"
errMkdir := httpfs.Mkdir(outDir)
if errMkdir != nil {
SetJobError(ID, errMkdir)
log.Println("makeProcess", errMkdir)
j := JobByName(ID)
if j != nil {
j.Reque()
}
return nil
}
out, errD := httpfs.Create(outDir + "/stdout.txt")
if errD != nil {
SetJobError(ID, errD)
log.Println("makeProcess", errD)
j := JobByName(ID)
if j != nil {
j.Reque()
}
return nil
}
cmd.Stderr = out
cmd.Stdout = out
return &Process{ID: ID, Cmd: cmd, Start: time.Now(), Out: out, OutputURL: OutputDir(inputURL), GUI: webAddr}
}
func doFile(infname string, outp output) {
// determine output file
outfname := util.NoExt(infname) + outp.Ext
if *flag_dir != "" {
outfname = *flag_dir + "/" + path.Base(outfname)
}
msg := infname + "\t-> " + outfname
defer func() { log.Println(msg) }()
if infname == outfname {
msg = fail(msg, "input and output file are the same")
return
}
defer func() {
if err := recover(); err != nil {
msg = fail(msg, err)
os.Remove(outfname)
}
}()
if !(strings.HasPrefix(infname, "http://") || strings.HasPrefix(outfname, "http://")) {
inStat, errS := os.Stat(infname)
if errS != nil {
panic(errS)
}
outStat, errO := os.Stat(outfname)
if errO == nil && outStat.ModTime().Sub(inStat.ModTime()) > 0 {
msg = "[skip] " + msg + ": skipped based on time stamps"
skipped.Add(1)
return
}
}
var slice *data.Slice
var info data.Meta
var err error
in, errI := httpfs.Open(infname)
if errI != nil {
msg = fail(msg, errI)
return
}
defer in.Close()
switch path.Ext(infname) {
default:
msg = fail(msg, ": skipping unsupported type: "+path.Ext(infname))
return
case ".ovf", ".omf", ".ovf2":
slice, info, err = oommf.Read(in)
case ".dump":
slice, info, err = dump.Read(in)
}
if err != nil {
msg = fail(msg, err)
return
}
out, err := httpfs.Create(outfname)
if err != nil {
msg = fail(msg, err)
return
}
defer out.Close()
preprocess(slice)
outp.Convert(slice, info, panicWriter{out})
succeeded.Add(1)
msg = "[ ok ] " + msg
}
// synchronous snapshot
func snapshot_sync(fname string, output *data.Slice) {
f, err := httpfs.Create(fname)
util.FatalErr(err)
defer f.Close()
draw.RenderFormat(f, output, "auto", "auto", arrowSize, path.Ext(fname))
}
