hpc-cluster-localssd.yaml

# Copyright 2022 Google LLC
#
# 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.

---

blueprint_name: hpc-cluster-localssd

vars:
  project_id: ## Set GCP Project ID Here ##
  deployment_name: hpc-localssd
  region: us-central1
  zone: us-central1-a

# Documentation for each of the modules used below can be found at
# https://github.com/GoogleCloudPlatform/hpc-toolkit/blob/main/modules/README.md

deployment_groups:
- group: primary
  modules:
  - id: network1
    source: modules/network/pre-existing-vpc

  - id: homefs
    source: modules/file-system/filestore
    use: [network1]
    settings:
      local_mount: /home

  - id: compute_node_group
    source: community/modules/compute/schedmd-slurm-gcp-v5-node-group
    settings:
      additional_disks:
      - device_name: test-disk-1
        disk_name:
        disk_size_gb: 375
        disk_type: local-ssd
        disk_labels:
        auto_delete: true
        boot: false
      - device_name: test-disk-2
        disk_name:
        disk_size_gb: 375
        disk_type: local-ssd
        disk_labels:
        auto_delete: true
        boot: false
      bandwidth_tier: gvnic_enabled
      machine_type: n1-standard-16
      node_count_dynamic_max: 5
      node_count_static: 0

  - id: compute_partition
    source: community/modules/compute/schedmd-slurm-gcp-v5-partition
    use:
    - network1
    - homefs
    - compute_node_group
    settings:
      is_default: true
      partition_name: ssdcomp
      region: us-central1

  - id: slurm_controller
    source: community/modules/scheduler/schedmd-slurm-gcp-v5-controller
    use:
    - network1
    - homefs
    - compute_partition
    settings:
      cloud_parameters:
        resume_rate: 0
        resume_timeout: 300
        suspend_rate: 0
        suspend_timeout: 300
        no_comma_params: false
      compute_startup_script: |
        #!/bin/bash
        export LOG_FILE=/tmp/custom_startup.log
        export DST_MNT="/mount/localssd" # TODO: set this appropriately
        if [ -d $DST_MNT ]; then
          echo "DST_MNT already exists. Canceling." >> $LOG_FILE
          exit 1
        fi
        sudo yum install mdadm -y
        lsblk >> $LOG_FILE
        export DEVICES=`lsblk -d -n -oNAME,RO | grep 'nvme.*0$' | awk {'print "/dev/" $1'}`
        export NB_DEVICES=`lsblk -d -n -oNAME,RO | grep 'nvme.*0$' | wc | awk {'print $1'}`
        sudo mdadm --create /dev/md0 --level=0 --raid-devices=$NB_DEVICES $DEVICES
        sudo mkfs.ext4 -F /dev/md0
        sudo mkdir -p $DST_MNT
        sudo mount /dev/md0 $DST_MNT
        sudo chmod a+w $DST_MNT
        echo UUID=`sudo blkid -s UUID -o value /dev/md0` $DST_MNT ext4 discard,defaults,nofail 0 2 | sudo tee -a /etc/fstab
        cat /etc/fstab >> $LOG_FILE
        echo "DONE" >> $LOG_FILE
        cat $LOG_FILE
      machine_type: n1-standard-4

  - id: slurm_login
    source: community/modules/scheduler/schedmd-slurm-gcp-v5-login
    use:
    - network1
    - slurm_controller
    settings:
      machine_type: n1-standard-4