[Bug] video_demo.py error，when runing mask2former

[zhangzscn]

Prerequisite

• I have searched Issues and Discussions but cannot get the expected help.
• I have read the FAQ documentation but cannot get the expected help.
• The bug has not been fixed in the latest version (master) or latest version (3.x).

Task

I'm using the official example scripts/configs for the officially supported tasks/models/datasets.

Branch

3.x branch https://github.com/open-mmlab/mmdetection/tree/3.x

Environment

sys.platform: linux
Python: 3.8.16 (default, Mar 2 2023, 03:21:46) [GCC 11.2.0]
CUDA available: True
numpy_random_seed: 2147483648
GPU 0: NVIDIA GeForce RTX 4090
CUDA_HOME: /usr/local/cuda
NVCC: Cuda compilation tools, release 12.1, V12.1.66
GCC: gcc (Ubuntu 11.3.0-1ubuntu1~22.04) 11.3.0
PyTorch: 1.12.1
PyTorch compiling details: PyTorch built with:

• GCC 9.3
• C++ Version: 201402
• Intel(R) oneAPI Math Kernel Library Version 2021.4-Product Build 20210904 for Intel(R) 64 architecture applications
• Intel(R) MKL-DNN v2.6.0 (Git Hash 52b5f107dd9cf10910aaa19cb47f3abf9b349815)
• OpenMP 201511 (a.k.a. OpenMP 4.5)
• LAPACK is enabled (usually provided by MKL)
• NNPACK is enabled
• CPU capability usage: AVX2
• CUDA Runtime 11.6
• NVCC architecture flags: -gencode;arch=compute_37,code=sm_37;-gencode;arch=compute_50,code=sm_50;-gencode;arch=compute_60,code=sm_60;-gencode;arch=compute_61,code=sm_61;-gencode;arch=compute_70,code=sm_70;-gencode;arch=compute_75,code=sm_75;-gencode;arch=compute_80,code=sm_80;-gencode;arch=compute_86,code=sm_86;-gencode;arch=compute_37,code=compute_37
• CuDNN 8.3.2 (built against CUDA 11.5)
• Magma 2.6.1
• Build settings: BLAS_INFO=mkl, BUILD_TYPE=Release, CUDA_VERSION=11.6, CUDNN_VERSION=8.3.2, CXX_COMPILER=/opt/rh/devtoolset-9/root/usr/bin/c++, CXX_FLAGS= -fabi-version=11 -Wno-deprecated -fvisibility-inlines-hidden -DUSE_PTHREADPOOL -fopenmp -DNDEBUG -DUSE_KINETO -DUSE_FBGEMM -DUSE_QNNPACK -DUSE_PYTORCH_QNNPACK -DUSE_XNNPACK -DSYMBOLICATE_MOBILE_DEBUG_HANDLE -DEDGE_PROFILER_USE_KINETO -O2 -fPIC -Wno-narrowing -Wall -Wextra -Werror=return-type -Wno-missing-field-initializers -Wno-type-limits -Wno-array-bounds -Wno-unknown-pragmas -Wno-unused-parameter -Wno-unused-function -Wno-unused-result -Wno-unused-local-typedefs -Wno-strict-overflow -Wno-strict-aliasing -Wno-error=deprecated-declarations -Wno-stringop-overflow -Wno-psabi -Wno-error=pedantic -Wno-error=redundant-decls -Wno-error=old-style-cast -fdiagnostics-color=always -faligned-new -Wno-unused-but-set-variable -Wno-maybe-uninitialized -fno-math-errno -fno-trapping-math -Werror=format -Werror=cast-function-type -Wno-stringop-overflow, LAPACK_INFO=mkl, PERF_WITH_AVX=1, PERF_WITH_AVX2=1, PERF_WITH_AVX512=1, TORCH_VERSION=1.12.1, USE_CUDA=ON, USE_CUDNN=ON, USE_EXCEPTION_PTR=1, USE_GFLAGS=OFF, USE_GLOG=OFF, USE_MKL=ON, USE_MKLDNN=OFF, USE_MPI=OFF, USE_NCCL=ON, USE_NNPACK=ON, USE_OPENMP=ON, USE_ROCM=OFF,

TorchVision: 0.13.1
OpenCV: 4.7.0
MMEngine: 0.6.0
MMDetection: 3.0.0rc6+c320060

Reproduces the problem - code sample

no

Reproduces the problem - command or script

python demo/video_demo.py video.avi configs/mask2former/mask2former_swin-l-p4-w12-384-in21k_16xb1-lsj-100e_coco-panoptic.py work_dirs/mask2former_swin-l-p4-w12-384-in21k_16xb1-lsj-100e_coco-panoptic_20220407_104949-82f8d28d.pth --out mask2former_result.avi --show --score-thr 0.5

Reproduces the problem - error message

Loads checkpoint by local backend from path: work_dirs/mask2former_swin-l-p4-w12-384-in21k_16xb1-lsj-100e_coco-panoptic_20220407_104949-82f8d28d.pth
/home/zhangzs36/anaconda3/envs/openmmlab3/lib/python3.8/site-packages/mmengine/visualization/visualizer.py:166: UserWarning: Visualizer backend is not initialized because save_dir is None.
warnings.warn('Visualizer backend is not initialized '
[ ] 0/2380, elapsed: 0s, ETA:/mnt/data1/代码/深度学习/mmdetection/mmdet/models/layers/positional_encoding.py:84: UserWarning: floordiv is deprecated, and its behavior will change in a future version of pytorch. It currently rounds toward 0 (like the 'trunc' function NOT 'floor'). This results in incorrect rounding for negative values. To keep the current behavior, use torch.div(a, b, rounding_mode='trunc'), or for actual floor division, use torch.div(a, b, rounding_mode='floor').
dim_t = self.temperature**(2 * (dim_t // 2) / self.num_feats)
/home/zhangzs36/anaconda3/envs/openmmlab3/lib/python3.8/site-packages/torch/functional.py:478: UserWarning: torch.meshgrid: in an upcoming release, it will be required to pass the indexing argument. (Triggered internally at /opt/conda/conda-bld/pytorch_1659484683044/work/aten/src/ATen/native/TensorShape.cpp:2894.)
return VF.meshgrid(tensors, **kwargs) # type: ignore[attr-defined]
Traceback (most recent call last):
File "demo/video_demo.py", line 83, in
main()
File "demo/video_demo.py", line 61, in main
result = inference_detector(model, frame, test_pipeline=test_pipeline)
File "/mnt/data1/代码/深度学习/mmdetection/mmdet/apis/inference.py", line 177, in inference_detector
results = model.test_step(data)[0]
File "/home/zhangzs36/anaconda3/envs/openmmlab3/lib/python3.8/site-packages/mmengine/model/base_model/base_model.py", line 145, in test_step
return self._run_forward(data, mode='predict') # type: ignore
File "/home/zhangzs36/anaconda3/envs/openmmlab3/lib/python3.8/site-packages/mmengine/model/base_model/base_model.py", line 326, in _run_forward
results = self(**data, mode=mode)
File "/home/zhangzs36/anaconda3/envs/openmmlab3/lib/python3.8/site-packages/torch/nn/modules/module.py", line 1130, in _call_impl
return forward_call(*input, **kwargs)
File "/mnt/data1/代码/深度学习/mmdetection/mmdet/models/detectors/base.py", line 94, in forward
return self.predict(inputs, data_samples)
File "/mnt/data1/代码/深度学习/mmdetection/mmdet/models/detectors/maskformer.py", line 101, in predict
mask_cls_results, mask_pred_results = self.panoptic_head.predict(
File "/mnt/data1/代码/深度学习/mmdetection/mmdet/models/dense_heads/maskformer_head.py", line 589, in predict
all_cls_scores, all_mask_preds = self(x, batch_data_samples)
File "/home/zhangzs36/anaconda3/envs/openmmlab3/lib/python3.8/site-packages/torch/nn/modules/module.py", line 1130, in _call_impl
return forward_call(*input, **kwargs)
File "/mnt/data1/代码/深度学习/mmdetection/mmdet/models/dense_heads/mask2former_head.py", line 405, in forward
mask_features, multi_scale_memorys = self.pixel_decoder(x)
File "/home/zhangzs36/anaconda3/envs/openmmlab3/lib/python3.8/site-packages/torch/nn/modules/module.py", line 1130, in _call_impl
return forward_call(*input, **kwargs)
File "/mnt/data1/代码/深度学习/mmdetection/mmdet/models/layers/msdeformattn_pixel_decoder.py", line 207, in forward
(1, )), spatial_shapes.prod(1).cumsum(0)[:-1]))
RuntimeError:
#define POS_INFINITY __int_as_float(0x7f800000)
#define INFINITY POS_INFINITY
#define NEG_INFINITY __int_as_float(0xff800000)
#define NAN __int_as_float(0x7fffffff)

typedef long long int int64_t;
typedef unsigned int uint32_t;
typedef signed char int8_t;
typedef unsigned char uint8_t; // NOTE: this MUST be "unsigned char"! "char" is equivalent to "signed char"
typedef short int16_t;
static_assert(sizeof(int64_t) == 8, "expected size does not match");
static_assert(sizeof(uint32_t) == 4, "expected size does not match");
static_assert(sizeof(int8_t) == 1, "expected size does not match");
constexpr int num_threads = 128;
constexpr int thread_work_size = 4; // TODO: make template substitution once we decide where those vars live
constexpr int block_work_size = thread_work_size * num_threads;
//TODO use _assert_fail, because assert is disabled in non-debug builds
#define ERROR_UNSUPPORTED_CAST assert(false);

namespace std {

using ::signbit;
using ::isfinite;
using ::isinf;
using ::isnan;

using ::abs;

using ::acos;
using ::acosf;
using ::asin;
using ::asinf;
using ::atan;
using ::atanf;
using ::atan2;
using ::atan2f;
using ::ceil;
using ::ceilf;
using ::cos;
using ::cosf;
using ::cosh;
using ::coshf;

using ::exp;
using ::expf;

using ::fabs;
using ::fabsf;
using ::floor;
using ::floorf;

using ::fmod;
using ::fmodf;

using ::frexp;
using ::frexpf;
using ::ldexp;
using ::ldexpf;

using ::log;
using ::logf;

using ::log10;
using ::log10f;
using ::modf;
using ::modff;

using ::pow;
using ::powf;

using ::sin;
using ::sinf;
using ::sinh;
using ::sinhf;

using ::sqrt;
using ::sqrtf;
using ::tan;
using ::tanf;

using ::tanh;
using ::tanhf;

using ::acosh;
using ::acoshf;
using ::asinh;
using ::asinhf;
using ::atanh;
using ::atanhf;
using ::cbrt;
using ::cbrtf;

using ::copysign;
using ::copysignf;

using ::erf;
using ::erff;
using ::erfc;
using ::erfcf;
using ::exp2;
using ::exp2f;
using ::expm1;
using ::expm1f;
using ::fdim;
using ::fdimf;
using ::fmaf;
using ::fma;
using ::fmax;
using ::fmaxf;
using ::fmin;
using ::fminf;
using ::hypot;
using ::hypotf;
using ::ilogb;
using ::ilogbf;
using ::lgamma;
using ::lgammaf;
using ::llrint;
using ::llrintf;
using ::llround;
using ::llroundf;
using ::log1p;
using ::log1pf;
using ::log2;
using ::log2f;
using ::logb;
using ::logbf;
using ::lrint;
using ::lrintf;
using ::lround;
using ::lroundf;

using ::nan;
using ::nanf;

using ::nearbyint;
using ::nearbyintf;
using ::nextafter;
using ::nextafterf;
using ::remainder;
using ::remainderf;
using ::remquo;
using ::remquof;
using ::rint;
using ::rintf;
using ::round;
using ::roundf;
using ::scalbln;
using ::scalblnf;
using ::scalbn;
using ::scalbnf;
using ::tgamma;
using ::tgammaf;
using ::trunc;
using ::truncf;

} // namespace std

// NB: Order matters for this macro; it is relied upon in
// promoteTypesLookup and the serialization format.
// Note, some types have ctype as void because we don't support them in codegen
#define AT_FORALL_SCALAR_TYPES_WITH_COMPLEX()
_(uint8_t, Byte) /* 0 /
_(int8_t, Char) / 1 /
_(int16_t, Short) / 2 /
_(int, Int) / 3 /
_(int64_t, Long) / 4 /
_(at::Half, Half) / 5 /
_(float, Float) / 6 /
_(double, Double) / 7 /
_(std::complexat::Half, ComplexHalf) / 8 /
_(std::complex, ComplexFloat) / 9 /
_(std::complex, ComplexDouble) / 10 /
_(bool, Bool) / 11 /
_(void, QInt8) / 12 /
_(void, QUInt8) / 13 /
_(void, QInt32) / 14 /
_(at::BFloat16, BFloat16) / 15 */ \

#define AT_FORALL_SCALAR_TYPES_WITH_COMPLEX_EXCEPT_QINT(_)
_(uint8_t, Byte)
_(int8_t, Char)
_(int16_t, Short)
_(int, Int)
_(int64_t, Long)
_(at::Half, Half)
_(float, Float)
_(double, Double)
_(std::complexat::Half, ComplexHalf)
_(std::complex, ComplexFloat)
_(std::complex, ComplexDouble)
_(bool, Bool)
_(at::BFloat16, BFloat16)

enum class ScalarType : int8_t {
#define DEFINE_ENUM(_1, n) n,
AT_FORALL_SCALAR_TYPES_WITH_COMPLEX(DEFINE_ENUM)
#undef DEFINE_ENUM
Undefined,
NumOptions
};

template <typename T, int size>
struct Array {
T data[size];

device T operator[](int i) const {
return data[i];
}
device T& operator[](int i) {
return data[i];
}
Array() = default;
Array(const Array&) = default;
Array& operator=(const Array&) = default;
device Array(T x) {
for (int i = 0; i < size; i++) {
data[i] = x;
}
}
};

template
struct DivMod {
T div;
T mod;

device DivMod(T _div, T _mod) {
div = _div;
mod = _mod;
}
};

//
struct IntDivider {
IntDivider() = default;

device inline unsigned int div(unsigned int n) const {
unsigned int t = __umulhi(n, m1);
return (t + n) >> shift;
}

device inline unsigned int mod(unsigned int n) const {
return n - div(n) * divisor;
}

device inline DivMod divmod(unsigned int n) const {
unsigned int q = div(n);
return DivMod(q, n - q * divisor);
}

unsigned int divisor; // d above.
unsigned int m1; // Magic number: m' above.
unsigned int shift; // Shift amounts.
};

template
struct TrivialOffsetCalculator {
// The offset for each argument. Wrapper around fixed-size array.
// The offsets are in # of elements, not in bytes.
Array<unsigned int, NARGS> get(unsigned int linear_idx) const {
Array<unsigned int, NARGS> offsets;
#pragma unroll
for (int arg = 0; arg < NARGS; arg++) {
offsets[arg] = linear_idx;
}
return offsets;
}
};

template
struct OffsetCalculator {
OffsetCalculator() = default;
device forceinline Array<unsigned int, NARGS> get(unsigned int linear_idx) const {
Array<unsigned int, NARGS> offsets;
#pragma unroll
for (int arg = 0; arg < NARGS; ++arg) {
offsets[arg] = 0;
}

  #pragma unroll
  for (int dim = 0; dim < 25; ++dim) {
  if (dim == dims) {
      break;
  }

  auto divmod = sizes_[dim].divmod(linear_idx);
  linear_idx = divmod.div;

  #pragma unroll
  for (int arg = 0; arg < NARGS; ++arg) {
      offsets[arg] += divmod.mod * strides_[dim][arg];
  }
  //printf("offset calc thread dim size stride offset %d %d %d %d %d %d %d %d\n",
  //threadIdx.x, dim, sizes_[dim].divisor, strides_[dim][0], offsets[0], linear_idx, divmod.div, divmod.mod);
  }
  return offsets;

}

int dims;
IntDivider sizes_[25];
// NOTE: this approach will not support nInputs == 0
unsigned int strides_[25][NARGS];

};

#define C10_HOST_DEVICE host device
#define C10_DEVICE device

template
device forceinline T WARP_SHFL_DOWN(T value, unsigned int delta, int width = warpSize, unsigned int mask = 0xffffffff)
{
return __shfl_down_sync(mask, value, delta, width);
}

#if 0
template
device forceinline std::complex WARP_SHFL_DOWN(std::complex value, unsigned int delta, int width = warpSize, unsigned int mask = 0xffffffff)
{
return std::complex(
__shfl_down_sync(mask, value.real(), delta, width),
__shfl_down_sync(mask, value.imag(), delta, width));
}
#endif

// aligned vector generates vectorized load/store on CUDA
template<typename scalar_t, int vec_size>
struct alignas(sizeof(scalar_t) * vec_size) aligned_vector {
scalar_t val[vec_size];
};

C10_HOST_DEVICE static void reduce_fraction(size_t &numerator, size_t &denominator) {
// get GCD of num and denom using Euclid's algorithm.
// Can replace this with std::gcd if we ever support c++17.
size_t a = denominator;
size_t b = numerator;
while (b != 0) {
a %= b;
// swap(a,b)
size_t tmp = a;
a = b;
b = tmp;
}

// a is now the GCD
numerator /= a;
denominator /= a;

}

struct ReduceConfig {
//has to match host-side ReduceConfig in the eager code
static constexpr int BLOCK_X = 0;
static constexpr int BLOCK_Y = 1;
static constexpr int CTA = 2;

static constexpr int input_vec_size = 4;
int element_size_bytes;
int num_inputs;
int num_outputs;
int step_input = 1;
int step_output = 1;
int ctas_per_output = 1;
int input_mult[3] = {0, 0, 0};
int output_mult[2] = {0, 0};

int block_width;
int block_height;
int num_threads;

bool vectorize_input = false;
int output_vec_size = 1;

C10_HOST_DEVICE bool should_block_x_reduce() const {
return input_mult[BLOCK_X] != 0;
}

C10_HOST_DEVICE bool should_block_y_reduce() const {
return input_mult[BLOCK_Y] != 0;
}

C10_HOST_DEVICE bool should_global_reduce() const {
return input_mult[CTA] != 0;
}

C10_DEVICE bool should_store(int output_idx) const {
return output_idx < num_outputs &&
(!should_block_x_reduce() || threadIdx.x == 0) &&
(!should_block_y_reduce() || threadIdx.y == 0);
}

C10_DEVICE bool should_reduce_tail() const {
return (!should_block_y_reduce() || threadIdx.y == 0) &&
(!should_global_reduce() || blockIdx.y == 0);
}

C10_HOST_DEVICE int input_idx() const {
int lane = threadIdx.x;
int warp = threadIdx.y;
int cta2 = blockIdx.y;
return (lane * input_mult[BLOCK_X] +
warp * input_mult[BLOCK_Y] +
cta2 * input_mult[CTA]);
}

template
C10_HOST_DEVICE int output_idx() const {
int lane = threadIdx.x;
int warp = threadIdx.y;
int cta1 = blockIdx.x;
return (lane * output_mult[BLOCK_X] +
warp * output_mult[BLOCK_Y] +
cta1 * step_output) * output_vec_size;
}

C10_DEVICE int shared_memory_offset(int offset) const {
return threadIdx.x + (threadIdx.y + offset) * blockDim.x;
}

C10_DEVICE int staging_memory_offset(int cta2) const {
int offset = cta2 + blockIdx.x * gridDim.y;
if (!should_block_x_reduce()) {
offset = threadIdx.x + offset * blockDim.x;
}
return offset;
}

};

//TODO this will need to be different for more generic reduction functions
namespace reducer {

using scalar_t = int64_t;
using arg_t = int64_t;
using out_scalar_t = int64_t;

inline device arg_t combine(arg_t a, arg_t b) { return a * b; }

inline device out_scalar_t project(arg_t arg) {
return (out_scalar_t) arg;
}

inline device arg_t warp_shfl_down(arg_t arg, int offset) {
return WARP_SHFL_DOWN(arg, offset);
}

inline device arg_t translate_idx(arg_t acc, int64_t /idx/) {
return acc;
}

// wrap a normal reduction that ignores the index
inline device arg_t reduce(arg_t acc, arg_t val, int64_t idx) {
return combine(acc, val);
}
}

struct ReduceJitOp {
using scalar_t = int64_t;
using arg_t = int64_t;
using out_scalar_t = int64_t;

using InputCalculator = OffsetCalculator<1>;
using OutputCalculator = OffsetCalculator<2>;

// static constexpr bool can_accumulate_in_output =
// std::is_convertible<arg_t, out_scalar_t>::value
// && std::is_convertible<out_scalar_t, arg_t>::value;

static constexpr int input_vec_size = ReduceConfig::input_vec_size;

arg_t ident;
ReduceConfig config;
InputCalculator input_calc;
OutputCalculator output_calc;
const void* src;
const char* dst[2]; //it accepts at most two destinations
// acc_buf used for accumulation among sub Tensor Iterator when accumulation on
// output is not permissible
void* acc_buf;
// cta_buf used for accumulation between blocks during global reduction
void* cta_buf;
int* semaphores;
int64_t base_idx;
bool accumulate;
bool final_output;
int noutputs;

C10_DEVICE void run() const {
extern shared char shared_memory[];
uint32_t output_idx = config.output_idx<1>();
uint32_t input_idx = config.input_idx();
auto base_offsets1 = output_calc.get(output_idx)[1];

using arg_vec_t = Array<arg_t, 1>;
arg_vec_t value;

if (output_idx < config.num_outputs && input_idx < config.num_inputs) {
  const scalar_t* input_slice = (const scalar_t*)((const char*)src + base_offsets1);

  value = thread_reduce<1>(input_slice);
}

if (config.should_block_y_reduce()) {
  value = block_y_reduce<1>(value, shared_memory);
}
if (config.should_block_x_reduce()) {
  value = block_x_reduce<1>(value, shared_memory);
}

using out_ptr_vec_t = Array<out_scalar_t*, 1>;
using offset_vec_t = Array<uint32_t, 1>;
offset_vec_t base_offsets;
out_ptr_vec_t out;

#pragma unroll
for (int i = 0; i < 1; i++) {
  base_offsets[i] = output_calc.get(output_idx + i)[0];
  out[i] = (out_scalar_t*)((char*)dst[0] + base_offsets[i]);
}

arg_vec_t* acc = nullptr;
if (acc_buf != nullptr) {
  size_t numerator = sizeof(arg_t);
  size_t denominator = sizeof(out_scalar_t);
  reduce_fraction(numerator, denominator);
  acc = (arg_vec_t*)((char*)acc_buf + (base_offsets[0] * numerator / denominator));
}

if (config.should_global_reduce()) {
  value = global_reduce<1>(value, acc, shared_memory);
} else if (config.should_store(output_idx)) {
  if (accumulate) {
    #pragma unroll
    for (int i = 0; i < 1; i++) {
      value[i] = reducer::translate_idx(value[i], base_idx);
    }
  }

  if (acc == nullptr) {
    if (accumulate) {
      value = accumulate_in_output<1>(out, value);
    }
    if (final_output) {
      set_results_to_output<1>(value, base_offsets);
    } else {
      #pragma unroll
      for (int i = 0; i < 1; i++) {
        *(out[i]) = get_accumulated_output(out[i], value[i]);
      }
    }
  } else {
    if (accumulate) {
      #pragma unroll
      for (int i = 0; i < 1; i++) {
        value[i] = reducer::combine((*acc)[i], value[i]);
      }
    }
    if (final_output) {
      set_results_to_output<1>(value, base_offsets);
    } else {
      *acc = value;
    }
  }
}

}

template
C10_DEVICE Array<arg_t, output_vec_size> thread_reduce(const scalar_t* data) const {
if (config.vectorize_input) {
assert(output_vec_size == 1);
// reduce at the header of input_slice where memory is not aligned,
// so that thread_reduce will have an aligned memory to work on.
return {input_vectorized_thread_reduce_impl(data)};
} else {
uint32_t element_stride = input_calc.strides_[0][0] / sizeof(scalar_t);
bool is_contiguous = (input_calc.dims == 1 && element_stride == 1);
if (is_contiguous) {
return thread_reduce_impl<output_vec_size>(data, [](uint32_t idx) { return idx; });
} else if (input_calc.dims == 1) {
return thread_reduce_impl<output_vec_size>(data, [&](uint32_t idx) { return idx * element_stride; });
} else {
return thread_reduce_impl<output_vec_size>(data, [&](uint32_t idx) { return input_calc.get(idx)[0] / sizeof(scalar_t); });
}
}
}

C10_DEVICE arg_t input_vectorized_thread_reduce_impl(const scalar_t* data) const {
uint32_t end = config.num_inputs;

// Handle the head of input slice where data is not aligned
arg_t value = ident;
constexpr int align_bytes = alignof(aligned_vector<scalar_t, input_vec_size>);
constexpr int align_elements = align_bytes / sizeof(scalar_t);
int shift = ((int64_t)data) % align_bytes / sizeof(scalar_t);
if (shift > 0) {
  data -= shift;
  end += shift;
  if(threadIdx.x >= shift && threadIdx.x < align_elements && config.should_reduce_tail()){
    value = reducer::reduce(value, data[threadIdx.x], threadIdx.x - shift);
  }
  end -= align_elements;
  data += align_elements;
  shift = align_elements - shift;
}

// Do the vectorized reduction
using load_t = aligned_vector<scalar_t, input_vec_size>;

uint32_t idx = config.input_idx();
const uint32_t stride = config.step_input;

// Multiple accumulators to remove dependency between unrolled loops.
arg_t value_list[input_vec_size];
value_list[0] = value;

#pragma unroll
for (int i = 1; i < input_vec_size; i++) {
  value_list[i] = ident;
}

scalar_t values[input_vec_size];

load_t *values_vector = reinterpret_cast<load_t*>(&values[0]);

while (idx * input_vec_size + input_vec_size - 1 < end) {
  *values_vector = reinterpret_cast<const load_t*>(data)[idx];
  #pragma unroll
  for (uint32_t i = 0; i < input_vec_size; i++) {
    value_list[i] = reducer::reduce(value_list[i], values[i], shift + idx * input_vec_size + i);
  }
  idx += stride;
}

// tail
uint32_t tail_start = end - end % input_vec_size;
if (config.should_reduce_tail()) {
  int idx = tail_start + threadIdx.x;
  if (idx < end) {
    value_list[0] = reducer::reduce(value_list[0], data[idx], idx + shift);
  }
}

// combine accumulators
#pragma unroll
for (int i = 1; i < input_vec_size; i++) {
  value_list[0] = reducer::combine(value_list[0], value_list[i]);
}
return value_list[0];

}

template <int output_vec_size, typename offset_calc_t>
C10_DEVICE Array<arg_t, output_vec_size> thread_reduce_impl(const scalar_t* data_, offset_calc_t calc) const {
uint32_t idx = config.input_idx();
const uint32_t end = config.num_inputs;
const uint32_t stride = config.step_input;
const int vt0=4;

using arg_vec_t = Array<arg_t, output_vec_size>;
using load_t = aligned_vector<scalar_t, output_vec_size>;
const load_t* data = reinterpret_cast<const load_t*>(data_);

// Multiple accumulators to remove dependency between unrolled loops.
arg_vec_t value_list[vt0];

#pragma unroll
for (int i = 0; i < vt0; i++) {
  #pragma unroll
  for (int j = 0; j < output_vec_size; j++) {
    value_list[i][j] = ident;
  }
}

load_t values[vt0];

while (idx + (vt0 - 1) * stride < end) {
  #pragma unroll
  for (uint32_t i = 0; i < vt0; i++) {
    values[i] = data[calc(idx + i * stride) / output_vec_size];
  }
  #pragma unroll
  for (uint32_t i = 0; i < vt0; i++) {
    #pragma unroll
    for (uint32_t j = 0; j < output_vec_size; j++) {
      value_list[i][j] = reducer::reduce(value_list[i][j], values[i].val[j], idx + i * stride);
    }
  }
  idx += stride * vt0;
}

// tail
int idx_ = idx;
#pragma unroll
for (uint32_t i = 0; i < vt0; i++) {
  if (idx >= end) {
    break;
  }
  values[i] = data[calc(idx) / output_vec_size];
  idx += stride;
}
idx = idx_;
#pragma unroll
for (uint32_t i = 0; i < vt0; i++) {
  if (idx >= end) {
    break;
  }
  #pragma unroll
  for (uint32_t j = 0; j < output_vec_size; j++) {
    value_list[i][j] = reducer::reduce(value_list[i][j], values[i].val[j], idx);
  }
  idx += stride;
}

// combine accumulators
#pragma unroll
for (int i = 1; i < vt0; i++) {
  #pragma unroll
  for (uint32_t j = 0; j < output_vec_size; j++) {
    value_list[0][j] = reducer::combine(value_list[0][j], value_list[i][j]);
  }
}
return value_list[0];

}
template
C10_DEVICE Array<arg_t, output_vec_size> block_x_reduce(Array<arg_t, output_vec_size> value, char* shared_memory) const {
using args_vec_t = Array<arg_t, output_vec_size>;
int dim_x = blockDim.x;
args_vec_t* shared = (args_vec_t*)shared_memory;
if (dim_x > warpSize) {
int address_base = threadIdx.x + threadIdx.y*blockDim.x;
shared[address_base] = value;
for (int offset = dim_x/2; offset >= warpSize; offset >>= 1) {
__syncthreads();
if (threadIdx.x < offset && threadIdx.x + offset < blockDim.x) {
args_vec_t other = shared[address_base + offset];
#pragma unroll
for (int i = 0; i < output_vec_size; i++) {
value[i] = reducer::combine(value[i], other[i]);
}
shared[address_base] = value;
}
}
dim_x = warpSize;
}

__syncthreads();

for (int offset = 1; offset < dim_x; offset <<= 1) {
  #pragma unroll
  for (int i = 0; i < output_vec_size; i++) {
    arg_t other = reducer::warp_shfl_down(value[i], offset);
    value[i] = reducer::combine(value[i], other);
  }
}
return value;

}

template
C10_DEVICE Array<arg_t, output_vec_size> block_y_reduce(Array<arg_t, output_vec_size> value, char* shared_memory) const {
using args_vec_t = Array<arg_t, output_vec_size>;
args_vec_t* shared = (args_vec_t*)shared_memory;
shared[config.shared_memory_offset(0)] = value;
for (int offset = blockDim.y / 2; offset > 0; offset >>= 1) {
__syncthreads();
if (threadIdx.y < offset && threadIdx.y + offset < blockDim.y) {
args_vec_t other = shared[config.shared_memory_offset(offset)];
#pragma unroll
for (int i = 0; i < output_vec_size; i++) {
value[i] = reducer::combine(value[i], other[i]);
}
shared[config.shared_memory_offset(0)] = value;
}
}
return value;
}

C10_DEVICE bool mark_block_finished() const {
shared bool is_last_block_done_shared;

__syncthreads();
if (threadIdx.x == 0 && threadIdx.y == 0) {
  int prev_blocks_finished = atomicAdd(&semaphores[blockIdx.x], 1);
  is_last_block_done_shared = (prev_blocks_finished == gridDim.y - 1);
}

__syncthreads();

return is_last_block_done_shared;

}

template
C10_DEVICE Array<arg_t, output_vec_size> accumulate_in_output(
Array<out_scalar_t*, output_vec_size> out,
Array<arg_t, output_vec_size> value
) const {
Array<arg_t, output_vec_size> ret;
#pragma unroll
for (int i = 0; i < output_vec_size; i++) {
ret[i] = reducer::combine(*(out[i]), value[i]);
}
return ret;
}

C10_DEVICE out_scalar_t get_accumulated_output(
out_scalar_t* out, arg_t value
) const {
assert(!final_output);
return (out_scalar_t)value;
}

template
C10_DEVICE void set_results(const T x, const uint32_t base_offset) const {
assert(noutputs == 1);
auto res = (out_scalar_t*)((char*)dst[0] + base_offset);
*res = x;
}

//TODO - multi-output reduction - we won't be able to use thrust::pair
//just explicitly specify typed output reads/writes
//Currently implemented for max of two outputs
// template<class T1, class T2>
// C10_DEVICE void set_results(const thrust::pair<T1, T2> x, const index_t base_offset) const {
// if (noutputs >= 1) {
// auto res0 = (T1*)((char*)dst[0] + base_offset);
// res0 = x.first;
// }
// if (noutputs >= 2) {
// // base offset is computed assuming element size being sizeof(T1), so we need to make a
// // correction to obtain the correct base offset
// auto res1 = (T2) ((char *) dst[1] + base_offset / sizeof(T1) * sizeof(T2));
// *res1 = x.second;
// }
// }

template
C10_DEVICE void set_results_to_output(Array<arg_t, output_vec_size> value, Array<uint32_t, output_vec_size> base_offset) const {
assert(final_output);
#pragma unroll
for (int i = 0; i < output_vec_size; i++) {
set_results(reducer::project(value[i]), base_offset[i]);
}
}

template
C10_DEVICE Array<arg_t, output_vec_size> global_reduce(Array<arg_t, output_vec_size> value, Array<arg_t, output_vec_size> acc, char shared_memory) const {
using arg_vec_t = Array<arg_t, output_vec_size>;
using out_ptr_vec_t = Array<out_scalar_t*, output_vec_size>;
using offset_vec_t = Array<uint32_t, output_vec_size>;

arg_vec_t* reduce_buffer = (arg_vec_t*)cta_buf;
uint32_t output_idx = config.output_idx<output_vec_size>();
offset_vec_t base_offsets;
out_ptr_vec_t out;

#pragma unroll
for (int i = 0; i < output_vec_size; i++) {
  base_offsets[i] = output_calc.get(output_idx + i)[0];
  out[i] = (out_scalar_t*)((char*)dst[0] + base_offsets[i]);
}

bool should_store = config.should_store(output_idx);
if (should_store) {
  uint32_t offset = config.staging_memory_offset(blockIdx.y);
  reduce_buffer[offset] = value;
}

__threadfence(); // make sure writes are globally visible
__syncthreads(); // if multiple warps in this block wrote to staging, make sure they're all done
bool is_last_block_done = mark_block_finished();

if (is_last_block_done) {
  value = ident;
  if (config.should_block_x_reduce()) {
    uint32_t input_offset = threadIdx.x + threadIdx.y * blockDim.x;
    uint32_t step = blockDim.x * blockDim.y;
    for (; input_offset < config.ctas_per_output; input_offset += step) {
      uint32_t idx = config.staging_memory_offset(input_offset);
      arg_vec_t next = reduce_buffer[idx];
      #pragma unroll
      for (int i = 0; i < output_vec_size; i++) {
        value[i] = reducer::combine(value[i], next[i]);
      }
    }
  } else {
    uint32_t input_offset = threadIdx.y;
    uint32_t step = blockDim.y;
    for (; input_offset < config.ctas_per_output; input_offset += step) {
      uint32_t idx = config.staging_memory_offset(input_offset);
      arg_vec_t next = reduce_buffer[idx];
      #pragma unroll
      for (int i = 0; i < output_vec_size; i++) {
        value[i] = reducer::combine(value[i], next[i]);
      }
    }
  }
  value = block_y_reduce(value, shared_memory);
  if (config.should_block_x_reduce()) {
    value = block_x_reduce<output_vec_size>(value, shared_memory);
  }
  if (should_store) {
    if (accumulate) {
      #pragma unroll
      for (int i = 0; i < output_vec_size; i++) {
        value[i] = reducer::translate_idx(value[i], base_idx);
      }
    }

    if (acc == nullptr) {
      if (accumulate) {
        value = accumulate_in_output<output_vec_size>(out, value);
      }
      if (final_output) {
        set_results_to_output<output_vec_size>(value, base_offsets);
      } else {
        #pragma unroll
        for (int i = 0; i < output_vec_size; i++) {
          *(out[i]) = get_accumulated_output(out[i], value[i]);
        }
      }
    } else {
      if (accumulate) {
        #pragma unroll
        for (int i = 0; i < output_vec_size; i++) {
          value[i] = reducer::combine((*acc)[i], value[i]);
        }
      }
      if (final_output) {
        set_results_to_output<output_vec_size>(value, base_offsets);
      } else {
        *acc = value;
      }
    }
  }
}

return value;

}
};

extern "C"
launch_bounds(512, 4)
global void reduction_prod_kernel(ReduceJitOp r){
r.run();
}
nvrtc: error: invalid value for --gpu-architecture (-arch)

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[zzzz123-0708]

how to fix it

[jiangtaoo2333]

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