From 960f72244eebd21bf062442ce30c72075b2c300e Mon Sep 17 00:00:00 2001
From: Ou Ku <o.ku@esciencecenter.nl>
Date: Wed, 10 Jun 2026 11:38:52 +0200
Subject: [PATCH 1/5] add timestamp suffix

---
 climanet/utils.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/climanet/utils.py b/climanet/utils.py
index c60bc5b..3501f48 100644
--- a/climanet/utils.py
+++ b/climanet/utils.py
@@ -4,6 +4,7 @@
 import numpy as np
 import xarray as xr
 import torch
+import time
 
 from torch.utils.tensorboard import SummaryWriter
 
@@ -222,7 +223,8 @@ def set_seed(seed: int = 42):
 def setup_logging(log_dir: str) -> SummaryWriter:
     """Set up TensorBoard logging directory and writer."""
     Path(log_dir).mkdir(parents=True, exist_ok=True)
-    return SummaryWriter(log_dir)
+    timestamp_utc = time.strftime("%Y%m%dT%H%M%S", time.gmtime())
+    return SummaryWriter(log_dir, filename_suffix=f'_UTC{timestamp_utc}')
 
 
 def compute_masked_loss(

From d9721dfd2b971b06d77c55ad2761974c203df1a7 Mon Sep 17 00:00:00 2001
From: Ou Ku <o.ku@esciencecenter.nl>
Date: Wed, 10 Jun 2026 11:46:38 +0200
Subject: [PATCH 2/5] add unit test for writer

---
 tests/test_utils.py | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/tests/test_utils.py b/tests/test_utils.py
index f4f5361..6c720b7 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -1,2 +1,11 @@
-def test_dummy():
-    assert True
+from climanet.utils import setup_logging
+
+
+def test_setup_logging(tmp_path):
+    writer = setup_logging(str(tmp_path))
+    writer.add_text("test", "This is a test log entry.")
+    writer.close()
+
+    # Test that there is at least one events file
+    # The filename should have "UTC" keyword, which is the timestamp suffix
+    assert any(tmp_path.glob("events.out.*UTC*"))

From 2e791be5fcf029e794a7fdbb5a44703667f9fa21 Mon Sep 17 00:00:00 2001
From: Ou Ku <o.ku@esciencecenter.nl>
Date: Wed, 10 Jun 2026 13:21:25 +0200
Subject: [PATCH 3/5] add tbparse as dependency

---
 pyproject.toml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pyproject.toml b/pyproject.toml
index 9261094..1c4aae6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,6 +15,7 @@ dependencies = [
     "matplotlib>=3.10.8",
     "netcdf4>=1.7.4",
     "scipy>=1.17.1",
+    "tbparse>=0.0.9",
     "tensorboard",
     "torch>=2.10.0",
     "xarray>=2025.12.0",

From 00368b7ad96cddfec9192db2270d15c6f9ced3be Mon Sep 17 00:00:00 2001
From: Ou Ku <o.ku@esciencecenter.nl>
Date: Wed, 10 Jun 2026 13:24:10 +0200
Subject: [PATCH 4/5] add tbparse log file reading in test

---
 tests/test_utils.py | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/tests/test_utils.py b/tests/test_utils.py
index 6c720b7..b4ae4f9 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -1,11 +1,18 @@
 from climanet.utils import setup_logging
+from tbparse import SummaryReader
 
 
 def test_setup_logging(tmp_path):
-    writer = setup_logging(str(tmp_path))
-    writer.add_text("test", "This is a test log entry.")
+    writer = setup_logging(tmp_path)
+    log_text = "This is a test log entry."
+    writer.add_scalar("Test Scalar", 42)
+    writer.add_text("Test Text", log_text)
     writer.close()
 
-    # Test that there is at least one events file
-    # The filename should have "UTC" keyword, which is the timestamp suffix
-    assert any(tmp_path.glob("events.out.*UTC*"))
+    # Test that there is one event file
+    # The file should have "UTC" keyword in timestamp suffix
+    assert len(list(tmp_path.glob("events*UTC*"))) == 1
+
+    # Load the events file with SummaryReader
+    reader = SummaryReader(tmp_path)
+    assert reader.text["value"].iloc[0] == log_text

From fc867aea517e0dd999012b386a64f6eb93cf82bf Mon Sep 17 00:00:00 2001
From: Ou Ku <o.ku@esciencecenter.nl>
Date: Wed, 10 Jun 2026 13:29:11 +0200
Subject: [PATCH 5/5] add scalar value check test

---
 tests/test_utils.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tests/test_utils.py b/tests/test_utils.py
index b4ae4f9..66bcb93 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -15,4 +15,5 @@ def test_setup_logging(tmp_path):
 
     # Load the events file with SummaryReader
     reader = SummaryReader(tmp_path)
-    assert reader.text["value"].iloc[0] == log_text
+    assert reader.text["value"].iloc[0] == log_text  # check text
+    assert reader.scalars["value"].iloc[0] == 42  # check scalar