rename branch to versatushpc/4.x and update README

- Rename ppc64le-support → versatushpc/4.x for multi-port strategy
- Update all workflow and script references to new branch name
- Add VersatusHPC fork description to README: ppc64le for EL10
  (available) and Ubuntu x86_64 (planned)
- Document 71/71 architecture-portable components built

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: viniciusferrao

.github/workflows/ppc64le-build.yml

@@ -2,7 +2,7 @@ name: ppc64le Build
 
 on:
   push:
-    branches: [ppc64le-support]
+    branches: [versatushpc/4.x]
     paths:
       - 'components/*/SPECS/*.spec'
       - 'components/*/*/SPECS/*.spec'
@@ -34,7 +34,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
         with:
-          ref: ppc64le-support
+          ref: versatushpc/4.x
           fetch-depth: 0
 
       - name: Verify build environment
@@ -47,7 +47,7 @@ jobs:
       - name: Build packages
         run: |
           cd /home/ferrao/ohpc-ppc64le-support
-          git pull origin ppc64le-support
+          git pull origin versatushpc/4.x
 
           if [ "${{ inputs.force_all }}" = "true" ]; then
             ./misc/ppc64le-autobuild.sh --force-all

.github/workflows/upstream-sync.yml

@@ -12,7 +12,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
         with:
-          ref: ppc64le-support
+          ref: versatushpc/4.x
           fetch-depth: 0
 
       - name: Fetch upstream
@@ -47,7 +47,7 @@ jobs:
           # Try merge
           if git merge upstream/4.x --no-edit; then
             echo "merge=clean" >> $GITHUB_OUTPUT
-            git push origin ppc64le-support
+            git push origin versatushpc/4.x
           else
             echo "merge=conflict" >> $GITHUB_OUTPUT
             git merge --abort

README.md

@@ -2,6 +2,34 @@
 # <img src="https://github.com/openhpc/ohpc/blob/master/docs/recipes/install/common/figures/ohpc_logo.png" width="170" valign="middle" hspace="5" alt="OpenHPC"/>
 <!-- markdownlint-enable MD013 MD033 -->
 
+## VersatusHPC Fork
+
+This is the [VersatusHPC](https://versatushpc.com.br) fork of
+[OpenHPC](https://github.com/openhpc/ohpc), extending the upstream project
+with additional platform support:
+
+| Platform | Architecture | Status |
+|----------|-------------|--------|
+| **EL10 (AlmaLinux/Rocky/RHEL)** | **ppc64le (IBM POWER)** | Available (`versatushpc/4.x` branch) |
+| **Ubuntu** | **x86_64** | Planned |
+
+### ppc64le Port
+
+The `versatushpc/4.x` branch provides full OpenHPC 4.x support for **ppc64le**
+(IBM POWER9+) on EL10. All 71 architecture-portable components from the
+official OpenHPC component list are built and available, including compilers
+(GCC 15), MPI stacks (OpenMPI 5, MPICH, MVAPICH2), SLURM, OpenPBS, and the
+complete scientific library stack (PETSc, Trilinos, Boost, HDF5, NetCDF, etc.).
+
+Only components that are inherently architecture-locked are excluded:
+Intel compilers/MPI, CUDA, ARM compilers, geopm, and msr-safe.
+
+The spec file changes are minimal (~90 lines across 21 files) and fully
+conditional (`%ifarch ppc64le`), preserving compatibility with upstream
+x86_64 and aarch64 builds.
+
+---
+
 ## Community building blocks for HPC systems
 
 ### Introduction

misc/ppc64le-autobuild.sh

@@ -14,7 +14,7 @@ REPO_DIR="/home/ferrao/ohpc-repo/EL10/ppc64le"
 LOG_DIR="/var/log/ohpc-autobuild"
 UPSTREAM_REMOTE="upstream"
 UPSTREAM_BRANCH="4.x"
-LOCAL_BRANCH="ppc64le-support"
+LOCAL_BRANCH="versatushpc/4.x"
 COMPILER_FAMILY="gnu15"
 MPI_FAMILY="openmpi5"
 BUILD_SCRIPT="/tmp/build_ohpc_bb.sh"