From 36d1f4b0c3beec224460793b92c6852573c6e01d Mon Sep 17 00:00:00 2001
From: Liam Pattinson <liampattinson@gmail.com>
Date: Tue, 17 Oct 2023 14:17:39 +0100
Subject: [PATCH] Remove printed messages, remove MPI when nprocs=1

---
 run_epoch.py                      | 4 ++--
 src/epoch_containers/run_epoch.py | 6 +-----
 2 files changed, 3 insertions(+), 7 deletions(-)

diff --git a/run_epoch.py b/run_epoch.py
index 0336996..54972b1 100755
--- a/run_epoch.py
+++ b/run_epoch.py
@@ -104,9 +104,8 @@ def singularity_cmd(
     container: str, output: Path, dims: int, photons: bool, nprocs: int
 ) -> str:
     """Constructs the command to run Epoch via a Singularity container."""
-    return dedent(
+    cmd = dedent(
         f"""\
-        mpirun -n {nprocs}
         singularity exec
         --bind {output.resolve()}:/output
         {container}
@@ -116,6 +115,7 @@ def singularity_cmd(
         {'--photons' if photons else ''}
         """
     ).replace("\n", " ")
+    return f"mpirun -n {nprocs} " + cmd if nprocs != 1 else cmd
 
 
 def main() -> None:
diff --git a/src/epoch_containers/run_epoch.py b/src/epoch_containers/run_epoch.py
index 9b9d0fc..00d5fef 100644
--- a/src/epoch_containers/run_epoch.py
+++ b/src/epoch_containers/run_epoch.py
@@ -103,12 +103,8 @@ def run_epoch(
 
     if not output.is_dir():
         raise NotADirectoryError(str(output))
-    full_path = output.resolve()
-    print(f"Running on the directory {full_path}, containing:")
-    for f in full_path.iterdir():
-        print(f"- {f.name}")
 
-    subprocess.run([exe], input=str(full_path).encode("utf-8"))
+    subprocess.run([exe], input=str(output.resolve()).encode("utf-8"))
 
 
 def main() -> None: