Try supporting pointer dtypes for reductions in cupy gpu jit

src/pystencils/jit/gpu_cupy.py

@@ -11,7 +11,7 @@ except ImportError:
 from ..codegen import Target
 from ..field import FieldType
 
-from ..types import PsType
+from ..types import PsType, PsPointerType
 from .jit import JitBase, JitError, KernelWrapper
 from ..codegen import (
     Kernel,
@@ -183,6 +183,9 @@ class CupyKernelWrapper(KernelWrapper):
                                 kparam.dtype,
                             )
                             break
+            elif isinstance(kparam.dtype, PsPointerType):
+                val = kwargs[kparam.name]
+                args.append(val)
             else:
                 #   scalar parameter
                 val: Any = kwargs[kparam.name]