From 3121612c8f53d3f3c6ad5744b7caadd4fff63522 Mon Sep 17 00:00:00 2001
From: Massimiliano Culpo <massimiliano.culpo@gmail.com>
Date: Mon, 18 Nov 2024 12:18:25 +0100
Subject: [PATCH] Restore message when concretizing in parallel

It was lost in #44843
---
 lib/spack/spack/concretize.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/spack/spack/concretize.py b/lib/spack/spack/concretize.py
index 28a29ccc00e..a6de04c4734 100644
--- a/lib/spack/spack/concretize.py
+++ b/lib/spack/spack/concretize.py
@@ -161,6 +161,11 @@ def concretize_separately(
     # TODO: support parallel concretization on macOS and Windows
     num_procs = min(len(args), spack.config.determine_number_of_jobs(parallel=True))
 
+    msg = "Starting concretization"
+    if sys.platform not in ("darwin", "win32") and num_procs > 1:
+        msg += f" pool with {num_procs} processes"
+    tty.msg(msg)
+
     for j, (i, concrete, duration) in enumerate(
         spack.util.parallel.imap_unordered(
             _concretize_task, args, processes=num_procs, debug=tty.is_debug(), maxtaskperchild=1