From 9dd29ac5897769492cba03b9f0e57390f60526d6 Mon Sep 17 00:00:00 2001
From: Roman Pope <popenov.r@gmail.com>
Date: Thu, 28 May 2026 02:54:44 -0400
Subject: [PATCH] Workflow: pin numpy<2 AFTER requirements.txt (torch 2.2.2
 NumPy 1.x ABI)

---
 .riahub/workflows/train.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/.riahub/workflows/train.yaml b/.riahub/workflows/train.yaml
index 05b8697..a3c1537 100644
--- a/.riahub/workflows/train.yaml
+++ b/.riahub/workflows/train.yaml
@@ -380,6 +380,10 @@ jobs:
             exit 1
           fi
           $PIP install h5py scipy
+          # After requirements.txt, force numpy back to <2 (torch 2.2.2 has
+          # NumPy 1.x ABI; transitive deps in requirements.txt would
+          # otherwise leave numpy 2.x in place and crash at runtime).
+          $PIP install --upgrade --force-reinstall "numpy<2"
           TORCH_INDEX_URL="https://download.pytorch.org/whl/cpu"
           TORCH_REASON="no NVIDIA GPU detected"
           if command -v nvidia-smi &> /dev/null; then