New try

pystencils/kerncraft_coupling/generate_benchmark.py

@@ -48,7 +48,7 @@ def generate_benchmark(ast, likwid=False, openmp=False, timing=False):
             size_data_type = np_dtype.itemsize
             elements = prod(field.shape)
             align = ast.instruction_set['width'] * size_data_type
-            padding_elements = dim0_size % ast.instruction_set['width']
+            padding_elements = modulo_ceil(dim0_size, ast.instruction_set['width']) - dim0_size
             padding_bytes = padding_elements * size_data_type
             ghost_layers = max(max(ast.ghost_layers))