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Releases: aws/aws-parallelcluster

AWS ParallelCluster v2.9.1

15 Sep 14:38
@enrico-usai enrico-usai
v2.9.1
6421537
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AWS ParallelCluster v2.9.1

We're excited to announce the release of AWS ParallelCluster 2.9.1.

Upgrade

How to upgrade?

sudo pip install --upgrade aws-parallelcluster

Bugfixes

  • Fix cluster creation with the head node in a private subnet when it doesn't get a public IP.

Support

Need help / have a feature request?
AWS Support: https://console.aws.amazon.com/support/home
ParallelCluster Issues tracker on GitHub: https://github.com/aws/aws-parallelcluster
The HPC Forum on the AWS Forums page: https://forums.aws.amazon.com/forum.jspa?forumID=192

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AWS ParallelCluster v2.9.0

11 Sep 18:52
@demartinofra demartinofra
v2.9.0
ef2996d
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AWS ParallelCluster v2.9.0

We're excited to announce the release of AWS ParallelCluster 2.9.0.

Upgrade

How to upgrade?

sudo pip install --upgrade aws-parallelcluster

ENHANCEMENTS

  • Add support for multiple queues and multiple instance types feature with the Slurm scheduler.
  • Extend NICE DCV support to ARM instances.
  • Extend support to disable hyperthreading on instances (like *.metal) that don't support CpuOptions in LaunchTemplate.
  • Enable support for NFS 4 for the filesystems shared from the head node.
  • Add CLI utility to convert configuration files with Slurm scheduler to new format to support multiple queues configuration.
  • Add script wrapper to support Torque-like commands with the Slurm scheduler.
  • Remove dependency on cfn-init in compute nodes bootstrap in order to avoid throttling and delays caused by CloudFormation when a large number of compute nodes join the cluster.

CHANGES

  • Introduce new configuration sections and parameters to support multiple queues and multiple instance types.
  • Optimize scaling logic with Slurm scheduler, no longer based on Auto Scaling groups.
  • A Route53 private hosted zone is now created together with the cluster and used in DNS resolution inside cluster nodes when using Slurm scheduler.
  • Upgrade EFA installer to version 1.9.5:
    • EFA configuration: efa-config-1.4 (from efa-config-1.3)
    • EFA profile: efa-profile-1.0.0
    • EFA kernel module: efa-1.6.0 (no change)
    • RDMA core: rdma-core-28.amzn0 (no change)
    • Libfabric: libfabric-1.10.1amazon1.1 (no change)
    • Open MPI: openmpi40-aws-4.0.3 (no change)
  • Upgrade Slurm to version 20.02.4.
  • Apply the following changes to Slurm configuration:
    • Assign a range of 10 ports to Slurmctld in order to better perform with large cluster settings
    • Configure cloud scheduling logic
    • Set ReconfigFlags=KeepPartState
    • Set MessageTimeout=60
    • Set TaskPlugin=task/affinity,task/cgroup together with TaskAffinity=no and ConstrainCores=yes in cgroup.conf
  • Upgrade NICE DCV to version 2020.1-9012.
  • Use private IP instead of master node hostname when mounting shared NFS drives.
  • Add new log streams to CloudWatch: chef-client, clustermgtd, computemgtd, slurm_resume, slurm_suspend.
  • Add support for queue names in pre/post install scripts.
  • Use PAY_PER_REQUEST billing mode for DynamoDb table in govcloud regions.

BUG FIXES

  • Solve dpkg lock issue with Ubuntu that prevented custom AMI creation in some cases.
  • Add/improve sanity checks for some configuration parameters.
  • Prevent ignored changes from being reported in pcluster update output.
  • Fix incompatibility issues with python 2.7 for pcluster update.
  • Fix SNS Topic Subscriptions not being deleted with cluster's CloudFormation stack.

Support

Need help / have a feature request?
AWS Support: https://console.aws.amazon.com/support/home
ParallelCluster Issues tracker on GitHub: https://github.com/aws/aws-parallelcluster
The HPC Forum on the AWS Forums page: https://forums.aws.amazon.com/forum.jspa?forumID=192

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AWS ParallelCluster v2.8.1

04 Aug 15:47
@enrico-usai enrico-usai
v2.8.1
ee89983
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AWS ParallelCluster v2.8.1

We're excited to announce the release of AWS ParallelCluster 2.8.1.

Upgrade

How to upgrade?

sudo pip install --upgrade aws-parallelcluster

Changes

  • Disable screen lock for DCV desktop sessions to prevent users from being locked out.

Bugfixes

  • Fix pcluster configure command to avoid writing unexpected configuration parameters.

Support

Need help / have a feature request?
AWS Support: https://console.aws.amazon.com/support/home
ParallelCluster Issues tracker on GitHub: https://github.com/aws/aws-parallelcluster
The HPC Forum on the AWS Forums page: https://forums.aws.amazon.com/forum.jspa?forumID=192

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AWS ParallelCluster v2.8.0

24 Jul 00:50
@tilne tilne
v2.8.0
cdc6073
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AWS ParallelCluster v2.8.0

We're excited to announce the release of AWS ParallelCluster 2.8.0.

Upgrade
How to upgrade?

sudo pip install --upgrade aws-parallelcluster

ENHANCEMENTS

  • Enable support for ARM instances on Ubuntu 18.04 and Amazon Linux 2.
  • Add support for the automatic backup features of FSx file systems.
  • Renewed user experience and robustness of cluster update functionality.
  • Support DCV and EFS in China regions.
  • Use DescribeInstanceTypes API to validate whether an instance type is EFA-enabled so that new EFA instances can
    be used without requiring an update to the ParallelCluster configuration files.
  • Enable Slurm to directly launch tasks and initialize communications through PMIx v3.1.5 on all supported
    operating systems except for CentOS 6.
  • Print a warning when using NICE DCV on micro or nano instances.

CHANGES

  • Remove the client requirement to have Berkshelf to build a custom AMI.
  • Upgrade EFA installer to version 1.9.4:
    • Kernel module: efa-1.6.0 (from efa-1.5.1)
    • RDMA core: rdma-core-28.amzn0 (from rdma-core-25.0)
    • Libfabric: libfabric-1.10.1amazon1.1 (updated from libfabric-aws-1.9.0amzn1.1)
    • Open MPI: openmpi40-aws-4.0.3 (no change)
  • Avoid unnecessary validation of IAM policies.
  • Removed unused dependency on supervisor from the Batch Dockerfile.
  • Move all LogGroup definitions in the CloudFormation templates into the CloudWatch substack.
  • Disable libvirtd service on CentOS 7. Virtual bridge interfaces are incorrectly detected by Open MPI and
    cause MPI applications to hang, see https://www.open-mpi.org/faq/?category=tcp#tcp-selection for details
  • Use CINC instead of Chef for provisioning instances. See https://cinc.sh/about/ for details.
  • Retry when mounting an NFS mount fails.
  • Install the pyenv virtual environments used by ParallelCluster cookbook and node daemon code under
    /opt/parallelcluster instead of under /usr/local.
  • Use the new official CentOS 7 AMI as the base images for ParallelCluster AMI.
  • Upgrade NVIDIA driver to Tesla version 440.95.01 on CentOS 6 and version 450.51.05 on all other distros.
  • Upgrade CUDA library to version 11.0 on all distros besides CentOS 6.
  • Install third-party cookbook dependencies via local source, rather than using the Chef supermarket.
  • Use https wherever possible in download URLs.
  • Install glibc-static, which is required to support certain options for the Intel MPI compiler.
  • Require an initial cluster size greater than zero when the option to maintain the initial cluster size is used.

BUG FIXES

  • Fix validator for CIDR-formatted IP range parameters.
  • Fix issue that was preventing concurrent use of custom node and pcluster CLI packages.
  • Use the correct domain name when contacting AWS services from the China partition.
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AWS ParallelCluster v2.7.0

19 May 08:33
@ddeidda ddeidda
v2.7.0
c3bec08
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AWS ParallelCluster v2.7.0

We're excited to announce the release of AWS ParallelCluster 2.7.0.

Upgrade

How to upgrade?

sudo pip install --upgrade aws-parallelcluster

ENHANCEMENTS

  • sqswatcher: The daemon is now compatible with VPC Endpoints so that SQS messages can be passed without traversing the public internet.

CHANGES

  • Upgrade NICE DCV to version 2020.0-8428.
  • Upgrade Intel MPI to version U7.
  • Upgrade NVIDIA driver to version 440.64.00.
  • Upgrade EFA installer to version 1.8.4:
    • Kernel module: efa-1.5.1 (no change)
    • RDMA core: rdma-core-25.0 (no change)
    • Libfabric: libfabric-aws-1.9.0amzn1.1 (no change)
    • Open MPI: openmpi40-aws-4.0.3 (updated from openmpi40-aws-4.0.2)
  • Upgrade CentOS 7 AMI to version 7.8
  • Configuration: base_os and scheduler parameters are now mandatory and they have no longer a default value.

BUG FIXES

  • Fix recipes installation at runtime by adding the bootstrapped file at the end of the last chef run.
  • Fix installation of FSx Lustre client on Centos 7
  • FSx Lustre: Exit with error when failing to retrieve FSx mountpoint
  • Fix sanity_check behavior when max queue_size > 1000

Support

Need help / have a feature request?
AWS Support: https://console.aws.amazon.com/support/home
ParallelCluster Issues tracker on GitHub: https://github.com/aws/aws-parallelcluster
The HPC Forum on the AWS Forums page: https://forums.aws.amazon.com/forum.jspa?forumID=192

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AWS ParallelCluster v2.6.1

09 Apr 22:58
@tilne tilne
v2.6.1
f80bf48
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AWS ParallelCluster v2.6.1

We're excited to announce the release of AWS ParallelCluster 2.6.1.

Upgrade

How to upgrade?

sudo pip install --upgrade aws-parallelcluster

ENHANCEMENTS

  • Improved management of S3 bucket that gets created when awsbatch scheduler is selected.
  • Add validation for supported OSes when using FSx Lustre.
  • Change ProctrackType from proctrack/gpid to proctrack/cgroup in Slurm in order to better handle termination of stray processes when running MPI applications. This also includes the creation of a cgroup Slurm configuration in in order to enable the cgroup plugin.
  • Skip execution, at node bootstrap time, of all those install recipes that are already applied at AMI creation time.
  • Start CloudWatch agent earlier in the node bootstrapping phase so that cookbook execution failures are correctly uploaded and are available for troubleshooting.
  • Improved the management of SQS messages and retries to speed-up recovery times when failures occur.

CHANGES

  • FSx Lustre: remove x-systemd.requires=lnet.service from mount options in order to rely on default lnet setup provided by Lustre.
  • Enforce Packer version to be >= 1.4.0 when building an AMI. This is also required for customers using pcluster createami command.
  • Do not launch a replacement for an unhealthy or unresponsive node until this is terminated. This makes cluster slower at provisioning new nodes when failures occur but prevents any temporary over-scaling with respect to the expected capacity.
  • Increase parallelism when starting slurmd on compute nodes that join the cluster from 10 to 30.
  • Reduce the verbosity of messages logged by the node daemons.
  • Do not dump logs to /home/logs when nodewatcher encounters a failure and terminates the node. CloudWatch can be used to debug such failures.
  • Reduce the number of retries for failed REMOVE events in sqswatcher.
  • Omit cfn-init-cmd and cfn-wire from the files stored in CloudWatch logs.

BUG FIXES

  • Configure proxy during cloud-init boothook in order for the proxy to be configured for all bootstrap actions.
  • Fix installation of Intel Parallel Studio XE Runtime that requires yum4 since version 2019.5.
  • Fix compilation of Torque scheduler on Ubuntu 18.04.
  • Fixed a bug in the ordering and retrying of SQS messages that was causing, under certain circumstances of heavy load, the scheduler configuration to be left in an inconsistent state.
  • Delete from queue the REMOVE events that are discarded due to hostname collision with another event fetched as part of the same sqswatcher iteration.

Support

Need help / have a feature request?
AWS Support: https://console.aws.amazon.com/support/home
ParallelCluster Issues tracker on GitHub: https://github.com/aws/aws-parallelcluster
The HPC Forum on the AWS Forums page: https://forums.aws.amazon.com/forum.jspa?forumID=192

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AWS ParallelCluster v2.6.0

26 Feb 20:46
@lukeseawalker lukeseawalker
v2.6.0
a2b72c7
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AWS ParallelCluster v2.6.0

We're excited to announce the release of AWS ParallelCluster 2.6.0.

Upgrade

How to upgrade?

sudo pip install --upgrade aws-parallelcluster

Enhancements

  • Add support for Amazon Linux 2
  • Add support for NICE DCV on Ubuntu 18.04
  • Add support for FSx Lustre on Ubuntu 18.04 and Ubuntu 16.04
  • New CloudWatch logging capability to collect cluster and job scheduler logs to CloudWatch for cluster monitoring and inspection
    • Add --keep-logs flag to pcluster delete command to preserve logs at cluster deletion
  • Install and setup Amazon Time Sync on all OSs
  • Enable accounting plugin in Slurm for all OSes. Note: accounting is not enabled nor configured by default
  • Add retry on throttling from CloudFormation API, happening when several compute nodes are being bootstrapped
    concurrently
  • Display detailed substack failures when pcluster create fails due to a substack error
  • Create additional EFS mount target in the AZ of compute subnet, if needed
  • Add validator for FSx Lustre Weekly Maintenance Start Time parameter
  • Add validator to the KMS key provided for EBS, FSx, and EFS
  • Add validator for S3 external resource
  • Support two new FSx Lustre features, Scratch 2 and Persistent filesystems
    • Add two new parameters deployment_type and per_unit_storage_throughput to the fsx section
    • Add new storage sizes storage_capacity, 1,200 GiB, 2,400 GiB and multiples of 2,400 are supported with SCRATCH_2
    • In transit encryption is available via fsx_kms_key_id parameter when deployment_type = PERSISTENT_1
    • New parameter per_unit_storage_throughput is available when deployment_type = PERSISTENT_1

Changes

  • Upgrade Slurm to version 19.05.5
  • Upgrade Intel MPI to version U6
  • Upgrade EFA installer to version 1.8.3:
    • Kernel module: efa-1.5.1 (updated from efa-1.4.1)
    • RDMA core: rdma-core-25.0 (distributed only) (no change)
    • Libfabric: libfabric-aws-1.9.0amzn1.1 (updated from libfabric-aws-1.8.1amzn1.3)
    • Open MPI: openmpi40-aws-4.0.2 (no change)
  • Install Python 2.7.17 on CentOS 6 and set it as default through pyenv
  • Install Ganglia from repository on Amazon Linux, Amazon Linux 2, CentOS 6 and CentOS 7
  • Disable StrictHostKeyChecking for SSH client when target host is inside cluster VPC for all OSs except CentOS 6
  • Pin Intel Python 2 and Intel Python 3 to version 2019.4
  • Automatically disable ptrace protection on Ubuntu 18.04 and Ubuntu 16.04 compute nodes when EFA is enabled.
    This is required in order to use local memory for interprocess communications in Libfabric provider
    as mentioned here: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/efa-start.html#efa-start-ptrace
  • Packer version >= 1.4.0 is required for AMI creation
  • Use version 5.2 of PyYAML for python 3 versions of 3.4 or earlier.

Bug Fixes

  • Fix issue with slurmd daemon not being restarted correctly when a compute node is rebooted
  • Fix errors causing Torque not able to locate jobs, setting server_name to fqdn on master node
  • Fix Torque issue that was limiting the max number of running jobs to the max size of the cluster
  • Fix OS validation depending on the configured scheduler

Support

Need help / have a feature request?
AWS Support: https://console.aws.amazon.com/support/home
ParallelCluster Issues tracker on GitHub: https://github.com/aws/aws-parallelcluster
The HPC Forum on the AWS Forums page: https://forums.aws.amazon.com/forum.jspa?forumID=192

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AWS ParallelCluster v2.5.1

13 Dec 16:35
@demartinofra demartinofra
v2.5.1
3f4e2c3
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AWS ParallelCluster v2.5.1

We're excited to announce the release of AWS ParallelCluster 2.5.1.

Upgrade

How to upgrade?

sudo pip install --upgrade aws-parallelcluster

Enhancements

  • Add --show-url flag to pcluster dcv connect command in order to generate a one-time URL that can be used to start a DCV session. This unblocks the usage of DCV when the browser cannot be launched automatically.

Changes

  • Upgrade CUDA library to version 10.2.
  • Using a Placement Group is not required anymore but highly recommended when enabling EFA.
  • Increase default root volume size in Centos 6 AMI to 25GB.
  • Increase the retention of CloudWatch logs produced when generating AWS Batch Docker images from 1 to 14 days.
  • Increase the total time allowed to build Docker images from 20 minutes to 30 minutes. This is done to better deal with slow networking in China regions.
  • Upgrade EFA installer to version 1.7.1:
    • Kernel module: efa-1.4.1
    • RDMA core: rdma-core-25.0
    • Libfabric: libfabric-aws-1.8.1amzn1.3
    • Open MPI: openmpi40-aws-4.0.2

Bug Fixes

  • Fix installation of NVIDIA drivers on Ubuntu 18.
  • Fix installation of CUDA toolkit on Centos 6.
  • Fix invalid default value for spot_price.
  • Fix issue that was preventing the cluster from being created in VPCs configured with multiple CIDR blocks.
  • Correctly handle failures when retrieving ASG in pcluster instances command.
  • Fix the default mount dir when a single EBS volume is specified through a dedicated ebs configuration section.
  • Correctly handle failures when there is an invalid parameter in the aws config section.
  • Fix a bug in pcluster delete that was causing the cli to exit with error when the cluster is successfully deleted.
  • Exit with status code 1 if pcluster create fails to create a stack.
  • Better handle the case of multiple or no network interfaces on FSX filesystems.
  • Fix pcluster configure to retain default values from old config file.
  • Fix bug in sqswatcher that was causing the daemon to fail when more than 100 DynamoDB tables are present in the cluster region.
  • Fix installation of Munge on Amazon Linux, Centos 6, Centos 7 and Ubuntu 16.

Support

Need help / have a feature request?
AWS Support: https://console.aws.amazon.com/support/home
ParallelCluster Issues tracker on GitHub: https://github.com/aws/aws-parallelcluster
The HPC Forum on the AWS Forums page: https://forums.aws.amazon.com/forum.jspa?forumID=192

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AWS ParallelCluster v2.5.0

15 Nov 22:37
@rexcsn rexcsn
v2.5.0
c4eab44
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AWS ParallelCluster v2.5.0

We're excited to announce the release of AWS ParallelCluster 2.5.0.

Upgrade

How to upgrade?

sudo pip install --upgrade aws-parallelcluster

Enhancements

  • Add support for new OS: Ubuntu 18.04
  • Add support for AWS Batch scheduler in China partition and in eu-north-1.
  • Revamped pcluster configure command which now supports automated networking configuration.
  • Add support for NICE DCV on Centos 7 to setup a graphical remote desktop session on the Master node.
  • Add support for new EFA supported instances: c5n.metal, m5dn.24xlarge, m5n.24xlarge, r5dn.24xlarge, r5n.24xlarge
  • Add support for scheduling with GPU options in Slurm. Currently supports the following GPU-related options: -G/--gpus, --gpus-per-task, --gpus-per-node, --gres=gpu, --cpus-per-gpu.
    Integrated GPU requirements into scaling logic, cluster will scale automatically to satisfy GPU/CPU requirements for pending jobs. When submitting GPU jobs, CPU/node/task information is not required but preferred in order to avoid ambiguity. If only GPU requirements are specified, cluster will scale up to the minimum number of nodes required to satisfy all GPU requirements.
  • Add new cluster configuration option to automatically disable Hyperthreading (disable_hyperthreading = true)
  • Install Intel Parallel Studio 2019.5 Runtime in Centos 7 when enable_intel_hpc_platform = true and share /opt/intel over NFS
  • Additional EC2 IAM Policies can now be added to the role ParallelCluster automatically creates for cluster nodes by simply specifying additional_iam_policies in the cluster config.

Changes

  • Ubuntu 14.04 is no longer supported
  • Upgrade Intel MPI to version U5.
  • Upgrade EFA Installer to version 1.7.0, this also upgrades Open MPI to 4.0.2.
  • Upgrade NVIDIA driver to Tesla version 418.87.
  • Upgrade CUDA library to version 10.1.
  • Upgrade Slurm to version 19.05.3-2.
  • Install EFA in China AMIs.
  • Increase default EBS volume size from 17GB to 25GB
  • FSx Lustre now supports new storage_capacity options 1,200 and 2,400 GiB
  • Enable flock user_xattr noatime Lustre mount options by default everywhere and
    x-systemd.automount x-systemd.requires=lnet.service for systemd based systems.
  • Increase the number of hosts that can be processed by scaling daemons in a single batch from 50 to 200. This improves the scaling time especially with increased ASG launch rates.
  • Change default sshd config in order to disable X11 forwarding and update the list of supported ciphers.
  • Increase faulty node termination timeout from 1 minute to 5 in order to give some additional time to the scheduler to recover when under heavy load.
  • Extended pcluster createami command to specify the VPC and network settings when building the AMI.
  • Support inline comments in config file
  • Support Python 3.8 in pcluster CLI.
  • Deprecate Python 2.6 support
  • Add ClusterName tag to EC2 instances.
  • Search for new available version only at pcluster create action.
  • Enable sanity_check by default.

Bug Fixes

  • Fix sanity check for custom ec2 role. Fixes #1241.
  • Fix bug when using same subnet for both master and compute.
  • Fix bug when ganglia is enabled ganglia urls are shown. Fixes #1322.
  • Fix bug with awsbatch scheduler that prevented Multi-node jobs from running.
  • Fix jobwatcher behaviour that was marking nodes locked by the nodewatcher as busy even if they had been removed already from the ASG Desired count. This was causing, in rare circumstances, a cluster overscaling.
  • Fix bug that was causing failures in sqswatcher when ADD and REMOVE event for the same host are fetched together.
  • Fix bug that was preventing nodes to mount partitioned EBS volumes.
  • Implement paginated calls in pcluster list.
  • Fix bug when creating awsbatch cluster with name longer than 31 chars
  • Fix a bug that lead to ssh not working after ssh'ing into a compute node by ip address.

Support

Need help / have a feature request?
AWS Support: https://console.aws.amazon.com/support/home
ParallelCluster Issues tracker on GitHub: https://github.com/aws/aws-parallelcluster
The HPC Forum on the AWS Forums page: https://forums.aws.amazon.com/forum.jspa?forumID=192

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AWS ParallelCluster v2.4.1

29 Jul 10:42
@demartinofra demartinofra
v2.4.1
8f5359f
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AWS ParallelCluster v2.4.1

We're excited to announce the release of AWS ParallelCluster 2.4.1.

Upgrade

How to upgrade?

sudo pip install --upgrade aws-parallelcluster

Docs

New docs are available here: https://docs.aws.amazon.com/parallelcluster/latest/ug/

Enhancements

  • Add support for ap-east-1 region (Hong Kong)
  • Add possibility to specify instance type to use when building custom AMIs with pcluster createami
  • Speed up cluster creation by having compute nodes starting together with master node
  • Enable ASG CloudWatch metrics for the ASG managing compute nodes
  • Install Intel MPI 2019u4 on Amazon Linux, Centos 7 and Ubuntu 1604
  • Upgrade Elastic Fabric Adapter (EFA) to version 1.4.1 that supports Intel MPI
  • Run all node daemons and cookbook recipes in isolated Python virtualenvs. This allows our code to always run with the required Python dependencies and solves all conflicts and runtime failures that were being caused by user packages installed in the system Python
  • Torque:
    • Process nodes added to or removed from the cluster in batches in order to speed up cluster scaling
    • Scale up only if required CPU/nodes can be satisfied
    • Scale down if pending jobs have unsatisfiable CPU/nodes requirements
    • Add support for jobs in hold/suspended state (this includes job dependencies)
    • Automatically terminate and replace faulty or unresponsive compute nodes
    • Add retries in case of failures when adding or removing nodes
    • Add support for ncpus reservation and multi nodes resource allocation (e.g. -l nodes=2:ppn=3+3:ppn=6)
    • Optimized Torque global configuration to faster react to the dynamic cluster scaling

Changes

  • Update EFA installer to a new version, note this changes the location of mpicc and mpirun. To avoid breaking existing code, we recommend you use the modulefile module load openmpi and which mpicc for anything that requires the full path
  • Eliminate Launch Configuration and use Launch Templates in all the regions
  • Torque: upgrade to version 6.1.2
  • Run all ParallelCluster daemons with Python 3.6 in a virtualenv. Daemons code now supports Python >= 3.5

Bug Fixes

  • Fix issue with sanity check at creation time that was preventing clusters from being created in private subnets
  • Fix pcluster configure when relative config path is used
  • Make FSx Substack depend on ComputeSecurityGroupIngress to keep FSx from trying to create prior to the SG allowing traffic within itself
  • Restore correct value for filehandle_limit that was getting reset when setting memory_limit for EFA
  • Torque: fix compute nodes locking mechanism to prevent job scheduling on nodes being terminated
  • Restore logic that was automatically adding compute nodes identity to SSH known_hosts file
  • Slurm: fix issue that was causing the ParallelCluster daemons to fail when the cluster is stopped and an empty compute nodes file is imported in Slurm config

Support

Need help / have a feature request?
AWS Support: https://console.aws.amazon.com/support/home
ParallelCluster Issues tracker on GitHub: https://github.com/aws/aws-parallelcluster
The HPC Forum on the AWS Forums page: https://forums.aws.amazon.com/forum.jspa?forumID=192

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