forked from 4paradigm/k8s-vgpu-scheduler
-
Notifications
You must be signed in to change notification settings - Fork 0
/
vdevice.go
90 lines (83 loc) · 2.29 KB
/
vdevice.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
/*
* Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package main
import (
"fmt"
"log"
"strings"
"github.com/NVIDIA/gpu-monitoring-tools/bindings/go/nvml"
pluginapi "k8s.io/kubelet/pkg/apis/deviceplugin/v1beta1"
)
// VDevice virtual device
type VDevice struct {
pluginapi.Device
dev *Device
memory uint64
}
// Device2VDevice device to virtual device
func Device2VDevice(devices []*Device) []*VDevice {
var vdevices []*VDevice
for _, d := range devices {
log.Println("uuid=", d.ID)
if strings.Contains(d.ID, "MIG") {
vd := &VDevice{Device: d.Device, dev: d, memory: 0}
vd.ID = fmt.Sprintf("%v-%v", d.ID, 0)
vd.memory = 0
vdevices = append(vdevices, vd)
continue
}
dev, err := nvml.NewDeviceByUUID(d.ID)
check(err)
memory := uint64(float64(*dev.Memory) * deviceMemoryScalingFlag / float64(deviceSplitCountFlag))
for i := uint(0); i < deviceSplitCountFlag; i++ {
vd := &VDevice{Device: d.Device, dev: d, memory: memory}
vd.ID = fmt.Sprintf("%v-%v", d.ID, i)
vd.memory = memory
vdevices = append(vdevices, vd)
}
}
return vdevices
}
// VDevicesByIDs filter vdevices by uuids
func VDevicesByIDs(vdevices []*VDevice, ids []string) ([]*VDevice, error) {
//var vds []*VDevice
vds := make([]*VDevice, len(ids))
OUTER:
for i, id := range ids {
for _, vd := range vdevices {
if vd.ID == id {
vds[i] = vd
continue OUTER
}
}
return nil, fmt.Errorf("unknown device: %s", id)
}
return vds, nil
}
// UniqueDeviceIDs get unique real device ids from vdevices
func UniqueDeviceIDs(vdevices []*VDevice) []string {
var ids []string
OUTER:
for _, vd := range vdevices {
for _, id := range ids {
if id == vd.dev.ID {
continue OUTER
}
}
ids = append(ids, vd.dev.ID)
}
return ids
}