Fix select_chunk calls in GPU implementation and syntax error

Author: kartikmandar

src/fftvis/gpu/gpu_simulate.py

@@ -416,7 +416,7 @@ def _evaluate_vis_chunk(
 
                 for source_chunk_idx in range(n_source_chunks):
                     # Select a chunk of sources above the horizon
-                    topo, flux_sqrt, nsim_sources = coord_mgr.select_chunk(source_chunk_idx)
+                    topo, flux_sqrt, nsim_sources = coord_mgr.select_chunk(source_chunk_idx, time_total_idx)
 
                     # Ensure topo and flux_sqrt are on GPU
                     if not isinstance(topo, cp.ndarray):

tests/test_performance_cpu_vs_gpu.py

@@ -392,4 +392,4 @@ def test_scaling_analysis(self):
     if len(sys.argv) > 1:
         pytest.main([__file__, f"::TestPerformanceCPUvsGPU::{sys.argv[1]}", "-v", "-s"])
     else:
-        pytest.main([__file__, "-v", "-s"])f
+        pytest.main([__file__, "-v", "-s"])