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(3.9.0 - 3.14.0) Performance degradation on tightly coupled workloads at scale

known issue

Status: Open.

#7095 In aws/aws-parallelcluster;

· hgreebe opened on Nov 12, 2025

(3.13.1) Build Image Fails on Rocky 9

3.x

known issue

Status: Open.

#6874 In aws/aws-parallelcluster;

· himani2411 opened on Jun 12, 2025

(3.7.0 – 3.13.2) Cannot SSH into LoginNodes with a Key that differs from the HeadNode’s

known issue

Status: Open.

#6811 In aws/aws-parallelcluster;

· hehe7318 opened on May 5, 2025

(3.6.0 - latest) Prolog hangs due to long GPU health check times on certain instance types

known issue

Status: Open.

#6777 In aws/aws-parallelcluster;

· hehe7318 opened on Apr 3, 2025

(3.9.1 - latest) Speculative Return Stack Overflow (SRSO) mitigations introducing potential performance impact on some AMD processors

known issue

Status: Open.

#6496 In aws/aws-parallelcluster;

· hanwen-pcluste opened on Oct 23, 2024

(3.9.0-3.10.1) Cluster update intermittently fails because some compute nodes don’t execute update procedure

known issue

Status: Open.

#6412 In aws/aws-parallelcluster;

· hanwen-pcluste opened on Aug 23, 2024

(3.8.0 - 3.9.3) ParallelCluster Build Image Failing during Installation of Minitar Ruby Gem Dependency

known issue

Status: Open.

#6405 In aws/aws-parallelcluster;

· himani2411 opened on Aug 19, 2024