GoogleCloudPlatform · mr0re1 · Jan 19, 2025 · Dec 7, 2024 · Dec 7, 2024
diff --git a/community/examples/AMD/hpc-amd-slurm.yaml b/community/examples/AMD/hpc-amd-slurm.yaml
@@ -178,7 +178,6 @@ deployment_groups:
       machine_type: c2d-standard-4
       node_count_dynamic_max: 10
       bandwidth_tier: gvnic_enabled
-      enable_placement: false
       allow_automatic_updates: false
 
   - id: low_cost_partition
@@ -194,7 +193,6 @@ deployment_groups:
       machine_type: c2d-standard-112
       node_count_dynamic_max: 50
       bandwidth_tier: gvnic_enabled
-      enable_placement: true
       allow_automatic_updates: false
 
   # Because is_default is set to true, jobs will run on this partition unless an

diff --git a/community/examples/hpc-slurm-sharedvpc.yaml b/community/examples/hpc-slurm-sharedvpc.yaml
@@ -61,7 +61,6 @@ deployment_groups:
     settings:
       node_count_dynamic_max: 4
       machine_type: n2-standard-2
-      enable_placement: false  # the default is: true
       allow_automatic_updates: false
 
   - id: debug_partition

diff --git a/community/examples/hpc-slurm-ubuntu2004.yaml b/community/examples/hpc-slurm-ubuntu2004.yaml
@@ -57,7 +57,6 @@ deployment_groups:
     use: [network]
     settings:
       instance_image: $(vars.slurm_image)
-      enable_placement: false # the default is: true
       node_count_dynamic_max: 4
       machine_type: n2-standard-2
 

diff --git a/community/examples/htc-slurm.yaml b/community/examples/htc-slurm.yaml
@@ -88,7 +88,6 @@ deployment_groups:
       name: c2s60
       node_count_dynamic_max: 200
       bandwidth_tier: gvnic_enabled
-      enable_placement: false
       allow_automatic_updates: false
 
   - id: compute_nodeset_c2s30
@@ -98,7 +97,6 @@ deployment_groups:
       node_count_dynamic_max: 200
       machine_type: c2-standard-30
       bandwidth_tier: gvnic_enabled
-      enable_placement: false
       allow_automatic_updates: false
 
   - id: compute_partition
@@ -122,7 +120,6 @@ deployment_groups:
       machine_type: n2-standard-2
       node_count_dynamic_max: 10
       bandwidth_tier: gvnic_enabled
-      enable_placement: false
       allow_automatic_updates: false
 
   - id: low_cost_nodeset_n2s4
@@ -133,7 +130,6 @@ deployment_groups:
       machine_type: n2-standard-4
       node_count_dynamic_max: 10
       bandwidth_tier: gvnic_enabled
-      enable_placement: false
       allow_automatic_updates: false
 
   - id: low_cost_partition

diff --git a/community/modules/compute/schedmd-slurm-gcp-v6-nodeset/README.md b/community/modules/compute/schedmd-slurm-gcp-v6-nodeset/README.md
@@ -177,7 +177,7 @@ modules. For support with the underlying modules, see the instructions in the
 | <a name="input_enable_maintenance_reservation"></a> [enable\_maintenance\_reservation](#input\_enable\_maintenance\_reservation) | Enables slurm reservation for scheduled maintenance. | `bool` | `false` | no |
 | <a name="input_enable_opportunistic_maintenance"></a> [enable\_opportunistic\_maintenance](#input\_enable\_opportunistic\_maintenance) | On receiving maintenance notification, maintenance will be performed as soon as nodes becomes idle. | `bool` | `false` | no |
 | <a name="input_enable_oslogin"></a> [enable\_oslogin](#input\_enable\_oslogin) | Enables Google Cloud os-login for user login and authentication for VMs.<br/>See https://cloud.google.com/compute/docs/oslogin | `bool` | `true` | no |
-| <a name="input_enable_placement"></a> [enable\_placement](#input\_enable\_placement) | Enable placement groups. | `bool` | `true` | no |
+| <a name="input_enable_placement"></a> [enable\_placement](#input\_enable\_placement) | Use placement policy for VMs in this nodeset.<br/>See: https://cloud.google.com/compute/docs/instances/placement-policies-overview<br/>To set max\_distance of used policy, use `placement_max_distance` variable.<br/><br/>Enabled by default, reasons for users to disable it:<br/>- If non-dense reservation is used, user can avoid extra-cost of creating placement policies;<br/>- If user wants to avoid "all or nothing" VM provisioning behaviour;<br/>- If user wants to intentionally have "spread" VMs (e.g. for reliability reasons) | `bool` | `true` | no |
 | <a name="input_enable_public_ips"></a> [enable\_public\_ips](#input\_enable\_public\_ips) | If set to true. The node group VMs will have a random public IP assigned to it. Ignored if access\_config is set. | `bool` | `false` | no |
 | <a name="input_enable_shielded_vm"></a> [enable\_shielded\_vm](#input\_enable\_shielded\_vm) | Enable the Shielded VM configuration. Note: the instance image must support option. | `bool` | `false` | no |
 | <a name="input_enable_smt"></a> [enable\_smt](#input\_enable\_smt) | DEPRECATED: Use `advanced_machine_features.threads_per_core` instead. | `bool` | `null` | no |

diff --git a/community/modules/compute/schedmd-slurm-gcp-v6-nodeset/outputs.tf b/community/modules/compute/schedmd-slurm-gcp-v6-nodeset/outputs.tf
@@ -25,14 +25,6 @@ output "nodeset" {
     error_message = "A disk_type=${var.disk_type} cannot be used with machine_type=${var.machine_type}."
   }
 
-  precondition {
-    condition     = var.reservation_name == "" || !var.enable_placement
-    error_message = <<-EOD
-      If a reservation is specified, `var.enable_placement` must be `false`.
-      If the specified reservation has a placement policy then it will be used automatically.
-    EOD
-  }
-
   precondition {
     condition     = var.reservation_name == "" || length(var.zones) == 0
     error_message = <<-EOD

diff --git a/community/modules/compute/schedmd-slurm-gcp-v6-nodeset/variables.tf b/community/modules/compute/schedmd-slurm-gcp-v6-nodeset/variables.tf
@@ -375,7 +375,16 @@ variable "disable_public_ips" { # tflint-ignore: terraform_unused_declarations
 
 
 variable "enable_placement" {
-  description = "Enable placement groups."
+  description = <<-EOD
+  Use placement policy for VMs in this nodeset.
+  See: https://cloud.google.com/compute/docs/instances/placement-policies-overview
+  To set max_distance of used policy, use `placement_max_distance` variable.
+
+  Enabled by default, reasons for users to disable it:
+  - If non-dense reservation is used, user can avoid extra-cost of creating placement policies;
+  - If user wants to avoid "all or nothing" VM provisioning behaviour;
+  - If user wants to intentionally have "spread" VMs (e.g. for reliability reasons)
+  EOD
   type        = bool
   default     = true
 }

diff --git a/community/modules/compute/schedmd-slurm-gcp-v6-partition/main.tf b/community/modules/compute/schedmd-slurm-gcp-v6-partition/main.tf
@@ -13,9 +13,8 @@
 # limitations under the License.
 
 locals {
-  non_static_ns_with_placement = [for ns in var.nodeset : ns.nodeset_name if ns.enable_placement && ns.node_count_static == 0]
-  use_static                   = [for ns in concat(var.nodeset, var.nodeset_tpu) : ns.nodeset_name if ns.node_count_static > 0]
-  uses_job_duration            = length([for ns in var.nodeset : ns.dws_flex.use_job_duration if ns.dws_flex.use_job_duration]) > 0 ? true : false
+  use_static        = [for ns in concat(var.nodeset, var.nodeset_tpu) : ns.nodeset_name if ns.node_count_static > 0]
+  uses_job_duration = length([for ns in var.nodeset : ns.dws_flex.use_job_duration if ns.dws_flex.use_job_duration]) > 0 ? true : false
 
   has_node = length(var.nodeset) > 0
   has_dyn  = length(var.nodeset_dyn) > 0

diff --git a/community/modules/compute/schedmd-slurm-gcp-v6-partition/outputs.tf b/community/modules/compute/schedmd-slurm-gcp-v6-partition/outputs.tf
@@ -17,11 +17,6 @@ output "partitions" {
 
   value = [local.partition]
 
-  precondition {
-    condition     = (length(local.non_static_ns_with_placement) == 0) || var.exclusive
-    error_message = "If any non-static nodesets has `enable_placement`, `var.exclusive` must be set true"
-  }
-
   precondition {
     condition     = (length(local.use_static) == 0) || !var.exclusive
     error_message = <<-EOD

diff --git a/...y/modules/scheduler/schedmd-slurm-gcp-v6-controller/modules/slurm_files/scripts/resume.py b/...y/modules/scheduler/schedmd-slurm-gcp-v6-controller/modules/slurm_files/scripts/resume.py
@@ -178,7 +178,6 @@ def create_instances_request(nodes: List[str], placement_group: Optional[str], e
     )
 
     if placement_group:
-        assert len(nodes) <= PLACEMENT_MAX_CNT
         pass # do not set minCount to force "all or nothing" behavior
     else:
         body["minCount"] = 1

diff --git a/docs/hybrid-slurm-cluster/blueprints/hybrid-configuration.yaml b/docs/hybrid-slurm-cluster/blueprints/hybrid-configuration.yaml
@@ -75,7 +75,6 @@ deployment_groups:
     settings:
       partition_name: debug
       exclusive: false
-      enable_placement: false
       is_default: false
 
   - id: compute_node_group

diff --git a/docs/tutorials/hpc-slurm-qwiklabs.yaml b/docs/tutorials/hpc-slurm-qwiklabs.yaml
@@ -39,7 +39,6 @@ deployment_groups:
     settings:
       node_count_dynamic_max: 4
       machine_type: n2d-standard-2
-      enable_placement: false # the default is: true
 
   - id: debug_partition
     source: community/modules/compute/schedmd-slurm-gcp-v6-partition

diff --git a/examples/hcls-blueprint.yaml b/examples/hcls-blueprint.yaml
@@ -333,7 +333,6 @@ deployment_groups:
         threads_per_core: null # Use platform default value
       node_count_dynamic_max: 20
       machine_type: g2-standard-4
-      enable_placement: False
       allow_automatic_updates: false
 
   - id: gpu_partition

diff --git a/examples/hpc-enterprise-slurm.yaml b/examples/hpc-enterprise-slurm.yaml
@@ -118,7 +118,6 @@ deployment_groups:
       node_count_dynamic_max: 4
       machine_type: n2-standard-2
       instance_image: $(vars.slurm_image)
-      enable_placement: false  # the default is: true
       allow_automatic_updates: false
 
   - id: n2_partition
@@ -138,7 +137,6 @@ deployment_groups:
       node_count_dynamic_max: 20
       machine_type: c2-standard-60  # this is the default
       instance_image: $(vars.slurm_image)
-      enable_placement: true
       bandwidth_tier: tier_1_enabled
       disk_type: pd-ssd
       disk_size_gb: 100
@@ -152,7 +150,7 @@ deployment_groups:
     settings:
       partition_name: c2
       # the following two are true by default
-      exclusive: true  # this must be true if nodeset.enable_placement is true
+      exclusive: true
 
   - id: c2d_nodeset
     source: community/modules/compute/schedmd-slurm-gcp-v6-nodeset

diff --git a/examples/hpc-slurm-static.yaml b/examples/hpc-slurm-static.yaml
@@ -47,7 +47,6 @@ deployment_groups:
     settings:
       node_count_static: $(vars.static_node_count)
       node_count_dynamic_max: 0
-      enable_placement: false  # placement is done on reservation
       reservation_name: $(vars.static_reservation_name)
       machine_type: $(vars.static_reservation_machine_type)
       instance_image: $(vars.slurm_instance_image)

diff --git a/examples/hpc-slurm.yaml b/examples/hpc-slurm.yaml
@@ -55,7 +55,6 @@ deployment_groups:
     settings:
       node_count_dynamic_max: 4
       machine_type: n2-standard-2
-      enable_placement: false # the default is: true
       allow_automatic_updates: false
 
   - id: debug_partition

diff --git a/examples/machine-learning/a3-highgpu-8g/ml-slurm-a3-2-cluster.yaml b/examples/machine-learning/a3-highgpu-8g/ml-slurm-a3-2-cluster.yaml
@@ -96,7 +96,6 @@ deployment_groups:
       node_count_static: 0
       node_count_dynamic_max: 4
       machine_type: n2-standard-2
-      enable_placement: false
 
   - id: debug_partition
     source: community/modules/compute/schedmd-slurm-gcp-v6-partition
@@ -182,7 +181,6 @@ deployment_groups:
     settings:
       reservation_name: $(vars.a3_reservation_name)
       maintenance_interval: $(vars.a3_maintenance_interval)
-      enable_placement: false
       node_count_static: $(vars.a3_static_cluster_size)
       node_count_dynamic_max: 0
       disk_type: pd-ssd

diff --git a/examples/machine-learning/a3-megagpu-8g/slurm-a3mega-cluster.yaml b/examples/machine-learning/a3-megagpu-8g/slurm-a3mega-cluster.yaml
@@ -21,7 +21,6 @@ vars:
   deployment_name: a3mega-cluster
   a3mega_partition_name: a3mega
   a3mega_maintenance_interval: ""
-  enable_placement: false
   remote_mount_homefs: /nfsshare
   local_mount_homefs: /home
   instance_image_custom: true

diff --git a/examples/ml-slurm.yaml b/examples/ml-slurm.yaml
@@ -208,7 +208,6 @@ deployment_groups:
     use: [network]
     settings:
       node_count_dynamic_max: 20
-      enable_placement: false
       bandwidth_tier: gvnic_enabled
       machine_type: g2-standard-4
       instance_image: $(vars.new_image)

diff --git a/examples/ps-slurm.yaml b/examples/ps-slurm.yaml
@@ -59,7 +59,6 @@ deployment_groups:
     settings:
       node_count_dynamic_max: 4
       machine_type: $(vars.compute_node_machine_type)
-      enable_placement: false  # the default is: true
       allow_automatic_updates: false
 
   - id: debug_partition

diff --git a/tools/cloud-build/daily-tests/blueprints/lustre-slurm.yaml b/tools/cloud-build/daily-tests/blueprints/lustre-slurm.yaml
@@ -23,8 +23,6 @@ vars:
   zone: us-central1-a
   machine_type: n2-standard-2
   disk_type: pd-ssd
-  # enable_placement: false
-  # on_host_maintenance: MIGRATE
   num_nodes: 1
   rocky_image:
     family: slurm-gcp-6-8-hpc-rocky-linux-8

diff --git a/tools/python-integration-tests/blueprints/topology-test.yaml b/tools/python-integration-tests/blueprints/topology-test.yaml
@@ -36,7 +36,6 @@ deployment_groups:
       node_count_dynamic_max: 0
       node_count_static: 5
       allow_automatic_updates: false
-      enable_placement: true
 
   - id: partition
     source: community/modules/compute/schedmd-slurm-gcp-v6-partition

diff --git a/tools/validate_configs/golden_copies/configs/versioned_blueprint.yaml b/tools/validate_configs/golden_copies/configs/versioned_blueprint.yaml
@@ -108,7 +108,6 @@ deployment_groups:
       node_count_dynamic_max: 4
       machine_type: n2-standard-2
       instance_image: $(vars.slurm_image)
-      enable_placement: false  # the default is: true
       allow_automatic_updates: false
 
   - id: n2_partition
@@ -128,7 +127,6 @@ deployment_groups:
       node_count_dynamic_max: 20
       machine_type: c2-standard-60  # this is the default
       instance_image: $(vars.slurm_image)
-      enable_placement: true
       bandwidth_tier: tier_1_enabled
       disk_type: pd-ssd
       disk_size_gb: 100
@@ -142,7 +140,7 @@ deployment_groups:
     settings:
       partition_name: c2
       # the following two are true by default
-      exclusive: true  # this must be true if nodeset.enable_placement is true
+      exclusive: true
 
   - id: c2d_nodeset
     source: community/modules/compute/schedmd-slurm-gcp-v6-nodeset

diff --git a/...gs/golden_copies/expectations/versioned_blueprint/.ghpc/artifacts/expanded_blueprint.yaml b/...gs/golden_copies/expectations/versioned_blueprint/.ghpc/artifacts/expanded_blueprint.yaml
@@ -150,7 +150,6 @@ deployment_groups:
           - compute_sa
         settings:
           allow_automatic_updates: false
-          enable_placement: false
           instance_image: ((var.slurm_image))
           instance_image_custom: ((var.instance_image_custom))
           labels: ((var.labels))
@@ -185,7 +184,6 @@ deployment_groups:
           bandwidth_tier: tier_1_enabled
           disk_size_gb: 100
           disk_type: pd-ssd
-          enable_placement: true
           instance_image: ((var.slurm_image))
           instance_image_custom: ((var.instance_image_custom))
           labels: ((var.labels))

diff --git a/tools/validate_configs/golden_copies/expectations/versioned_blueprint/primary/main.tf b/tools/validate_configs/golden_copies/expectations/versioned_blueprint/primary/main.tf
@@ -81,7 +81,6 @@ module "scratchfs" {
 module "n2_nodeset" {
   source                  = "github.com/GoogleCloudPlatform/cluster-toolkit//community/modules/compute/schedmd-slurm-gcp-v6-nodeset?ref=v1.38.0&depth=1"
   allow_automatic_updates = false
-  enable_placement        = false
   instance_image          = var.slurm_image
   instance_image_custom   = var.instance_image_custom
   labels                  = var.labels
@@ -112,7 +111,6 @@ module "c2_nodeset" {
   bandwidth_tier          = "tier_1_enabled"
   disk_size_gb            = 100
   disk_type               = "pd-ssd"
-  enable_placement        = true
   instance_image          = var.slurm_image
   instance_image_custom   = var.instance_image_custom
   labels                  = var.labels

diff --git a/tools/validate_configs/test_configs/config-ssh.yaml b/tools/validate_configs/test_configs/config-ssh.yaml
@@ -48,7 +48,6 @@ deployment_groups:
     settings:
       node_count_dynamic_max: 4
       machine_type: n2-standard-2
-      enable_placement: false # the default is: true
 
   - id: debug_partition
     source: community/modules/compute/schedmd-slurm-gcp-v6-partition

diff --git a/tools/validate_configs/test_configs/gpu.yaml b/tools/validate_configs/test_configs/gpu.yaml
@@ -139,7 +139,6 @@ deployment_groups:
     use: [network_slurm]
     settings:
       name: nogpu
-      enable_placement: false
       node_count_dynamic_max: 4
       machine_type: n2-standard-2
 
@@ -148,7 +147,6 @@ deployment_groups:
     use: [network_slurm]
     settings:
       name: man
-      enable_placement: false
       node_count_dynamic_max: 4
       machine_type: a2-ultragpu-2g
       guest_accelerator:
@@ -160,7 +158,6 @@ deployment_groups:
     use: [network_slurm]
     settings:
       name: auto
-      enable_placement: false
       node_count_dynamic_max: 4
       machine_type: a2-ultragpu-2g
 

diff --git a/tools/validate_configs/test_configs/slurm-gcp-v6-startup-scripts.yaml b/tools/validate_configs/test_configs/slurm-gcp-v6-startup-scripts.yaml
@@ -61,7 +61,6 @@ deployment_groups:
     settings:
       node_count_dynamic_max: 4
       machine_type: n2-standard-2
-      enable_placement: false
 
   - id: debug_partition
     source: community/modules/compute/schedmd-slurm-gcp-v6-partition

diff --git a/tools/validate_configs/test_configs/zone-policies-slurm.yaml b/tools/validate_configs/test_configs/zone-policies-slurm.yaml
@@ -48,7 +48,6 @@ deployment_groups:
       node_count_dynamic_max: 4
       machine_type: n2-standard-2
       enable_public_ips: true
-      enable_placement: false
 
   - id: zonal_partition
     source: community/modules/compute/schedmd-slurm-gcp-v6-partition
@@ -63,7 +62,6 @@ deployment_groups:
     settings:
       node_count_dynamic_max: 4
       machine_type: n2-standard-2
-      enable_placement: false
       zones: $(vars.additional_zones)
 
   - id: multizonal_partition