-
Notifications
You must be signed in to change notification settings - Fork 26
/
collector.go
194 lines (166 loc) · 4.91 KB
/
collector.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
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
package collector
import (
"GPUMounter/pkg/device"
"GPUMounter/pkg/util/gpu"
"GPUMounter/pkg/util/gpu/collector/nvml"
. "GPUMounter/pkg/util/log"
"context"
"fmt"
"net"
"os"
"strings"
"time"
"google.golang.org/grpc"
podresourcesapi "k8s.io/kubernetes/pkg/kubelet/apis/podresources/v1alpha1"
)
type GPUCollector struct {
GPUList []*device.NvidiaGPU
}
func NewGPUCollector() (*GPUCollector, error) {
Logger.Info("Creating gpu collector")
gpuCollector := &GPUCollector{}
if err := gpuCollector.GetGPUInfo(); err != nil {
Logger.Error("Failed to init gpu collector")
return nil, err
}
err := gpuCollector.UpdateGPUStatus()
if err != nil {
Logger.Error("Failed to update gpu status")
return nil, err
}
Logger.Info("Successfully update gpu status")
return gpuCollector, nil
}
func (gpuCollector *GPUCollector) GetGPUInfo() error {
Logger.Info("Start get gpu info")
if err := nvml.Init(); err != nil {
Logger.Error("nvml error: %+v", err)
return err
}
defer nvml.Shutdown()
num, err := nvml.GetDeviceCount()
if err != nil {
Logger.Error("Failed to get GPU num")
} else {
Logger.Info("GPU Num: ", num)
}
for i := uint(0); i < num; i++ {
dev, err := nvml.DeviceGetHandleByIndex(i)
if err != nil {
Logger.Error("Failed to get GPU ", i)
return err
}
minorNum, err := dev.DeviceGetMinorNumber()
if err != nil {
Logger.Error("Failed to get minor number of GPU ", i)
return err
}
uuid, err := dev.DeviceGetUUID()
if err != nil {
Logger.Error("Failed to get uuid of GPU ", i)
return err
}
gpuDev := device.New(int(minorNum), uuid)
gpuCollector.GPUList = append(gpuCollector.GPUList, gpuDev)
}
return nil
}
func (gpuCollector *GPUCollector) GetGPUByUUID(uuid string) (*device.NvidiaGPU, error) {
for _, gpuDev := range gpuCollector.GPUList {
if gpuDev.UUID == uuid {
return gpuDev, nil
}
}
return nil, fmt.Errorf("No GPU with UUID" + uuid)
}
func (gpuCollector *GPUCollector) UpdateGPUStatus() error {
Logger.Info("Updating GPU status")
_, err := os.Stat(gpu.SocketPath)
if os.IsNotExist(err) {
Logger.Error("Can not found ", gpu.SocketPath)
Logger.Error(err)
return err
}
conn, cleanup, err := connectToServer(gpu.SocketPath)
if err != nil {
Logger.Error("Can not connect to ", gpu.SocketPath)
Logger.Error(err)
return err
}
defer cleanup()
listPodResp, err := ListPods(conn)
if err != nil {
Logger.Error("Can not connect to ", gpu.SocketPath)
Logger.Error(err)
return err
}
gpuCollector.resetGPUStatus()
for _, pod := range listPodResp.GetPodResources() {
for _, container := range pod.GetContainers() {
for _, dev := range container.GetDevices() {
if dev.GetResourceName() != gpu.NvidiaResourceName {
continue
}
for _, uuid := range dev.GetDeviceIds() {
if nvidiaGPU, err := gpuCollector.GetGPUByUUID(uuid); err != nil {
Logger.Error("No GPU with UUID: ", uuid)
return err
} else {
nvidiaGPU.State = device.GPU_ALLOCATED_STATE
nvidiaGPU.PodName = pod.Name
nvidiaGPU.Namespace = pod.Namespace
Logger.Debug("GPU: ", nvidiaGPU.DeviceFilePath, " allocated to Pod: ", pod.Name, " in Namespace ", pod.Namespace)
}
}
}
}
}
Logger.Info("GPU status update successfully")
return nil
}
func (gpuCollector *GPUCollector) resetGPUStatus() {
for _, gpuDev := range gpuCollector.GPUList {
gpuDev.ResetState()
}
}
/**
get gpu resources of pod and it slave pod
*/
func (gpuCollector *GPUCollector) GetPodGPUResources(podName string, namespace string) ([]*device.NvidiaGPU, error) {
err := gpuCollector.UpdateGPUStatus()
if err != nil {
Logger.Error("Failed to update gpu status")
return nil, err
}
var gpuResources []*device.NvidiaGPU
for _, gpuDev := range gpuCollector.GPUList {
if (gpuDev.PodName == podName && gpuDev.Namespace == namespace) ||
(strings.Contains(gpuDev.PodName, podName+"-slave-pod-") && gpuDev.Namespace == gpu.GPUPoolNamespace) {
gpuResources = append(gpuResources, gpuDev)
}
}
return gpuResources, nil
}
func connectToServer(socket string) (*grpc.ClientConn, func(), error) {
ctx, cancel := context.WithTimeout(context.Background(), gpu.ConnectionTimeout)
defer cancel()
conn, err := grpc.DialContext(ctx, socket, grpc.WithInsecure(), grpc.WithBlock(),
grpc.WithDialer(func(addr string, timeout time.Duration) (net.Conn, error) {
return net.DialTimeout("unix", addr, timeout)
}),
)
if err != nil {
return nil, func() {}, fmt.Errorf("failure connecting to %s: %v", socket, err)
}
return conn, func() { conn.Close() }, nil
}
func ListPods(conn *grpc.ClientConn) (*podresourcesapi.ListPodResourcesResponse, error) {
client := podresourcesapi.NewPodResourcesListerClient(conn)
ctx, cancel := context.WithTimeout(context.Background(), gpu.ConnectionTimeout)
defer cancel()
resp, err := client.List(ctx, &podresourcesapi.ListPodResourcesRequest{})
if err != nil {
return nil, fmt.Errorf("failure getting pod resources %v", err)
}
return resp, nil
}