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Sep 30, 2024
Merged

Add warning: total GPU quota is greater than total GPU count #69

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28 changes: 16 additions & 12 deletions tools/cluster-checker/checker.js
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Original file line number Diff line number Diff line change
Expand Up @@ -4,10 +4,10 @@ const k8s = require('@kubernetes/client-node')
const k8srp = require('kubernetes-resource-parser')

const nodeResources = {
'nvidia.com/gpu' : 8,
'nvidia.com/roce_gdr' : 2,
'cpu' : 80,
'memory' : '800G'
'nvidia.com/gpu': 8,
'nvidia.com/roce_gdr': 2,
'cpu': 80,
'memory': '800G'
}

class Client {
Expand Down Expand Up @@ -39,11 +39,11 @@ class Client {
return res.body
}

async readOperatorConfig() {
async readOperatorConfig () {
const options = [
{ns: 'redhat-ods-applications', cm: 'codeflare-operator-config', key: 'config.yaml', f: cm => cm.appwrapper?.Config },
{ns: 'mlbatch-system', cm: 'appwrapper-operator-config', key: 'config.yaml', f: cm => cm.appwrapper },
{ns: 'appwrapper-system', cm: 'appwrapper-operator-config', key: 'config.yaml', f: cm => cm.appwrapper }
{ ns: 'redhat-ods-applications', cm: 'codeflare-operator-config', key: 'config.yaml', f: cm => cm.appwrapper?.Config },
{ ns: 'mlbatch-system', cm: 'appwrapper-operator-config', key: 'config.yaml', f: cm => cm.appwrapper },
{ ns: 'appwrapper-system', cm: 'appwrapper-operator-config', key: 'config.yaml', f: cm => cm.appwrapper }
]
for (const opt of options) {
try {
Expand Down Expand Up @@ -149,7 +149,7 @@ function reservation (pod) {
}

// check container resource requests against node_resources
function checkContainerResources(namespace, workload, workloadReplicas, container) {
function checkContainerResources (namespace, workload, workloadReplicas, container) {
// selectively merge limits into requests
const resources = {}
for (const k in container.resources?.requests ?? []) {
Expand Down Expand Up @@ -181,13 +181,13 @@ function checkContainerResources(namespace, workload, workloadReplicas, containe
}

// warn if the resource:GPU ratio is not proportional to Node resources
if (gdr > 0 && ((gpus == 0) || (gpus/gdr < nodeResources['nvidia.com/gpu']/nodeResources['nvidia.com/roce_gdr']))) {
if (gdr > 0 && ((gpus == 0) || (gpus / gdr < nodeResources['nvidia.com/gpu'] / nodeResources['nvidia.com/roce_gdr']))) {
console.log(`WARNING: workload "${namespace.metadata.name}/${workload.metadata.name}" has a container requesting ${gdr} roce_gdr but only ${gpus} GPUs`)
}
if (gpus > 0 && (cpus > 0) && (cpus/gpus > nodeResources['cpu']/nodeResources['nvidia.com/gpu'])) {
if (gpus > 0 && (cpus > 0) && (cpus / gpus > nodeResources['cpu'] / nodeResources['nvidia.com/gpu'])) {
console.log(`WARNING: workload "${namespace.metadata.name}/${workload.metadata.name}" has a container requesting ${cpus} cpus but only ${gpus} GPUs`)
}
if (gpus > 0 && (mem > 0) && (mem/gpus > k8srp.memoryParser(nodeResources['memory'])/nodeResources['nvidia.com/gpu'])) {
if (gpus > 0 && (mem > 0) && (mem / gpus > k8srp.memoryParser(nodeResources['memory']) / nodeResources['nvidia.com/gpu'])) {
console.log(`WARNING: workload "${namespace.metadata.name}/${workload.metadata.name}" has a container requesting ${resources['memory']} memory but only ${gpus} GPUs`)
}

Expand Down Expand Up @@ -376,6 +376,10 @@ async function main () {
console.log('WARNING: nominal GPU quota is greater than schedulable GPU count')
}

if (quotaGPUs + slackGPUs > clusterGPUs) {
console.log('WARNING: total GPU quota is greater than total GPU count')
}

// check all accessible namespaces
const namespaces = await client.namespaces()
for (const namespace of namespaces) {
Expand Down