[bugfix] GPU properties not displayed by logger (#145)

# Description

Fixed the issue below. The issue has a code snippet to reproduce the
error (and see what the fix did).

# Related issues

Solves issue #143 

# Checklist

- [x] I have run the tests on a device with GPUs.
- [x] I have performed a self-review of my code.
- [ ] I have commented hard-to-understand parts of my code.
- [ ] I have made corresponding changes to the public API documentation.
- [x] I have added tests that prove my fix is effective or that my
feature works.
- [ ] I have updated the changelog with any user-facing changes.

docs/changelog.rst

@@ -1,6 +1,11 @@
 Changelog
 ~~~~~~~~~
 
+Unreleased
+----------
+
+* Fixed a bug causing the logger to fail displaying device properties.
+
 0.7.0 (July 2024)
 -----------------
 

pytket/extensions/cutensornet/general.py

@@ -81,14 +81,14 @@ def __exit__(self, exc_type: Any, exc_value: Any, exc_tb: Any) -> None:
     def print_device_properties(self, logger: Logger) -> None:
         """Prints local GPU properties."""
         device_props = cp.cuda.runtime.getDeviceProperties(self.dev.id)
-        logger.debug("===== device info ======")
-        logger.debug("GPU-name:", device_props["name"].decode())
-        logger.debug("GPU-clock:", device_props["clockRate"])
-        logger.debug("GPU-memoryClock:", device_props["memoryClockRate"])
-        logger.debug("GPU-nSM:", device_props["multiProcessorCount"])
-        logger.debug("GPU-major:", device_props["major"])
-        logger.debug("GPU-minor:", device_props["minor"])
-        logger.debug("========================")
+        logger.info("===== device info ======")
+        logger.info("GPU-name: " + device_props["name"].decode())
+        logger.info("GPU-clock: " + str(device_props["clockRate"]))
+        logger.info("GPU-memoryClock: " + str(device_props["memoryClockRate"]))
+        logger.info("GPU-nSM: " + str(device_props["multiProcessorCount"]))
+        logger.info("GPU-major: " + str(device_props["major"]))
+        logger.info("GPU-minor: " + str(device_props["minor"]))
+        logger.info("========================")
 
 
 def set_logger(

tests/test_utils.py

@@ -1,4 +1,6 @@
+import pytest
 import numpy
+from pytket.extensions.cutensornet.general import CuTensorNetHandle, set_logger
 from pytket.extensions.cutensornet.general_state.utils import (
     circuit_statevector_postselect,
 )
@@ -31,3 +33,11 @@ def test_circuit_statevector_postselect() -> None:
     sv_postselect = circuit_statevector_postselect(circ, post_select_dict)
 
     numpy.testing.assert_array_equal(sv_postselect, sv_post_select)
+
+
+def test_device_properties_logger() -> None:
+    try:
+        with CuTensorNetHandle() as libhandle:
+            libhandle.print_device_properties(set_logger("GeneralState", 10))
+    except:
+        pytest.fail("Could not print device properties")