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workunit.go
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workunit.go
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package core
import (
"fmt"
"github.com/MG-RAST/AWE/lib/conf"
"os"
"time"
)
const (
WORK_STAT_QUEUED = "queued"
WORK_STAT_CHECKOUT = "checkout"
WORK_STAT_SUSPEND = "suspend"
WORK_STAT_DONE = "done"
WORK_STAT_FAIL = "fail"
WORK_STAT_PREPARED = "prepared"
WORK_STAT_COMPUTED = "computed"
WORK_STAT_DISCARDED = "discarded"
WORK_STAT_PROXYQUEUED = "proxyqueued"
)
type Workunit struct {
Id string `bson:"wuid" json:"wuid"`
Info *Info `bson:"info" json:"info"`
Inputs []*IO `bson:"inputs" json:"inputs"`
Outputs []*IO `bson:"outputs" json:"outputs"`
Predata []*IO `bson:"predata" json:"predata"`
Cmd *Command `bson:"cmd" json:"cmd"`
App *App `bson:"app" json:"app"`
Rank int `bson:"rank" json:"rank"`
TotalWork int `bson:"totalwork" json:"totalwork"`
Partition *PartInfo `bson:"part" json:"part"`
State string `bson:"state" json:"state"`
Failed int `bson:"failed" json:"failed"`
CheckoutTime time.Time `bson:"checkout_time" json:"checkout_time"`
Client string `bson:"client" json:"client"`
ComputeTime int `bson:"computetime" json:"computetime"`
Notes string `bson:"notes" json:"notes"`
UserAttr map[string]string `bson:"userattr" json:"userattr"`
}
type WorkLog struct {
Id string `bson:"wuid" json:"wuid"`
Rank int `bson:"rank" json:"rank"`
Stdout string `bson:"stdout" json:"stdout"`
Stderr string `bson:"stderr" json:"stderr"`
Worknotes string `bson:"worknotes" json:"worknotes"`
}
func NewWorkLog(tid string, rank int) (wlog *WorkLog) {
wid := fmt.Sprintf("%s_%d", tid, rank)
wlog = new(WorkLog)
wlog.Id = wid
wlog.Rank = rank
wlog.Stdout, _ = QMgr.GetReportMsg(wid, "stdout")
wlog.Stderr, _ = QMgr.GetReportMsg(wid, "stderr")
wlog.Worknotes, _ = QMgr.GetReportMsg(wid, "worknotes")
return
}
// create workunit slice type to use for sorting
type WorkunitsSortby struct {
Order string
Direction string
Workunits []*Workunit
}
func (w WorkunitsSortby) Len() int {
return len(w.Workunits)
}
func (w WorkunitsSortby) Swap(i, j int) {
w.Workunits[i], w.Workunits[j] = w.Workunits[j], w.Workunits[i]
}
func (w WorkunitsSortby) Less(i, j int) bool {
// default is ascending
if w.Direction == "desc" {
i, j = j, i
}
switch w.Order {
// default is info.submittime
default:
return w.Workunits[i].Info.SubmitTime.Before(w.Workunits[j].Info.SubmitTime)
case "wuid":
return w.Workunits[i].Id < w.Workunits[j].Id
case "client":
return w.Workunits[i].Client < w.Workunits[j].Client
case "info.submittime":
return w.Workunits[i].Info.SubmitTime.Before(w.Workunits[j].Info.SubmitTime)
case "checkout_time":
return w.Workunits[i].CheckoutTime.Before(w.Workunits[j].CheckoutTime)
case "info.name":
return w.Workunits[i].Info.Name < w.Workunits[j].Info.Name
case "cmd.name":
return w.Workunits[i].Cmd.Name < w.Workunits[j].Cmd.Name
case "rank":
return w.Workunits[i].Rank < w.Workunits[j].Rank
case "totalwork":
return w.Workunits[i].TotalWork < w.Workunits[j].TotalWork
case "state":
return w.Workunits[i].State < w.Workunits[j].State
case "failed":
return w.Workunits[i].Failed < w.Workunits[j].Failed
case "info.priority":
return w.Workunits[i].Info.Priority < w.Workunits[j].Info.Priority
}
}
func NewWorkunit(task *Task, rank int) *Workunit {
return &Workunit{
Id: fmt.Sprintf("%s_%d", task.Id, rank),
Cmd: task.Cmd,
App: task.App,
Info: task.Info,
Inputs: task.Inputs,
Outputs: task.Outputs,
Predata: task.Predata,
Rank: rank,
TotalWork: task.TotalWork, //keep this info in workunit for load balancing
Partition: task.Partition,
State: WORK_STAT_QUEUED,
Failed: 0,
UserAttr: task.UserAttr,
//AppVariables: task.AppVariables // not needed yet
}
}
func (work *Workunit) Mkdir() (err error) {
// delete workdir just in case it exists; will not work if awe-client is not in docker container AND tasks are in container
os.RemoveAll(work.Path())
err = os.MkdirAll(work.Path(), 0777)
if err != nil {
return
}
return
}
func (work *Workunit) RemoveDir() (err error) {
err = os.RemoveAll(work.Path())
if err != nil {
return
}
return
}
func (work *Workunit) Path() string {
id := work.Id
return fmt.Sprintf("%s/%s/%s/%s/%s", conf.WORK_PATH, id[0:2], id[2:4], id[4:6], id)
}
func (work *Workunit) CDworkpath() (err error) {
return os.Chdir(work.Path())
}
func (work *Workunit) IndexType() (indextype string) {
return work.Partition.Index
}
//calculate the range of data part
//algorithm: try to evenly distribute indexed parts to workunits
//e.g. totalWork=4, totalParts=10, then each workunits have parts 3,3,2,2
func (work *Workunit) Part() (part string) {
if work.Rank == 0 {
return ""
}
partsize := work.Partition.TotalIndex / work.TotalWork //floor
remainder := work.Partition.TotalIndex % work.TotalWork
var start, end int
if work.Rank <= remainder {
start = (partsize+1)*(work.Rank-1) + 1
end = start + partsize
} else {
start = (partsize+1)*remainder + partsize*(work.Rank-remainder-1) + 1
end = start + partsize - 1
}
if start == end {
part = fmt.Sprintf("%d", start)
} else {
part = fmt.Sprintf("%d-%d", start, end)
}
return
}