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"""
Low-level functionality tests for GEMM with S8 operands on SM90
"""

from functools import partial
import logging
import unittest

import cutlass
from cutlass.backend.utils.device import device_cc

from utils import LayoutCombination, add_test_gemm


cutlass.set_log_level(logging.WARNING)
cc = 90
dtype = cutlass.DataType.s8


@unittest.skipIf(device_cc() < cc, 'Device compute capability is insufficient for SM90 tests.')
@unittest.skipIf(cutlass.utils.datatypes.torch_type(dtype) is None, f'Version of torch installed does not contain a datatype match for {dtype}')
class GemmS8Sm90(unittest.TestCase):
    """
    Wrapper class to which tests will be added dynamically in __main__
    """
    pass


add_test_specialized = partial(add_test_gemm, cls=GemmS8Sm90, element=dtype, compilation_modes=['nvcc'])

add_test_tensorop = partial(add_test_specialized, opclass=cutlass.OpcodeClass.TensorOp)

# Tests with 1x1x1 clusters
add_test_tensorop(layouts=LayoutCombination.TNN, alignments=[16, 16, 16], element_output=cutlass.DataType.s8,
                  element_accumulator=cutlass.DataType.s32, cluster_shape=[1, 1, 1], threadblock_shape=[128, 128, 128], stages=3)
add_test_tensorop(layouts=LayoutCombination.TNT, alignments=[16, 16, 16], element_output=cutlass.DataType.s8,
                  element_accumulator=cutlass.DataType.s32, cluster_shape=[1, 1, 1], threadblock_shape=[128, 128, 128], stages=None)
add_test_tensorop(layouts=LayoutCombination.TNT, alignments=[16, 16,  8], element_output=cutlass.DataType.s8,
                  element_accumulator=cutlass.DataType.s32, cluster_shape=[1, 1, 1], threadblock_shape=[128, 128, 128], stages=None)
add_test_tensorop(layouts=LayoutCombination.TNT, alignments=[16, 16, 16], element_output=cutlass.DataType.s8,
                  element_accumulator=cutlass.DataType.s32, cluster_shape=[1, 1, 1], threadblock_shape=[64,  128, 128], stages=None)
add_test_tensorop(layouts=LayoutCombination.TNT, alignments=[16, 16, 16], element_output=cutlass.DataType.s8,
                  element_accumulator=cutlass.DataType.s32, cluster_shape=[1, 1, 1], threadblock_shape=[128,  64,  32], stages=None)
add_test_tensorop(layouts=LayoutCombination.TNT, alignments=[ 4,  4, 16], element_output=cutlass.DataType.s8,
                  element_accumulator=cutlass.DataType.s32, cluster_shape=[1, 1, 1], threadblock_shape=[128, 128, 128], stages=None)

# Tests with different cluster shapes
add_test_tensorop(layouts=LayoutCombination.TNT, alignments=[16, 16, 16], element_output=cutlass.DataType.s8,
                  element_accumulator=cutlass.DataType.s32, cluster_shape=[2, 2, 1], threadblock_shape=[128, 128, 128], stages=None)
add_test_tensorop(layouts=LayoutCombination.TNT, alignments=[16, 16, 16], element_output=cutlass.DataType.s8,
                  element_accumulator=cutlass.DataType.s32, cluster_shape=[1, 4, 1], threadblock_shape=[128, 128, 128], stages=None)

# Tests with warp-specialized ping-pong schedule
add_test_tensorop(layouts=LayoutCombination.TNT, alignments=[16, 16, 16], element_output=cutlass.DataType.s8,
                  element_accumulator=cutlass.DataType.s32, cluster_shape=[2, 1, 1], threadblock_shape=[128, 128, 128], stages=None,
                  kernel_schedule=cutlass.KernelScheduleType.TmaWarpSpecializedPingpong,
                  epilogue_schedule=cutlass.EpilogueScheduleType.TmaWarpSpecialized)

# Tests for SIMT
add_test_simt = partial(add_test_specialized, opclass=cutlass.OpcodeClass.Simt)
add_test_simt(layouts=LayoutCombination.TNN, alignments=[1, 1, 1], element_output=cutlass.DataType.s8,
              element_accumulator=cutlass.DataType.s32, cluster_shape=[1, 1, 1], threadblock_shape=[64, 32, 8], stages=2)


if __name__ == '__main__':
    unittest.main()
