working on file too long problem in windows

pyproject.toml

 [build-system]
-requires = ["setuptools>=41.0", "wheel", "pccm>=0.2.5", "cumm>=0.1.5"]
+requires = ["setuptools>=41.0", "wheel", "pccm>=0.2.7", "cumm>=0.1.6"]
 build-backend = "setuptools.build_meta"

spconv/csrc/sparse/indices.py

@@ -448,7 +448,7 @@ class SparseConvIndicesKernel(pccm.ParameterizedClass):
         int filter_offset = blockIdx.y;
         uint32_t filter_mask_out = (1u << (filter_offset));
         uint32_t filter_mask_in = (1u << (RS - 1 - filter_offset));
-        uint32_t filter_mask_center = (1u << (RS / 2));
+        // uint32_t filter_mask_center = (1u << (RS / 2));
 
         loc_iter.set_filter_offset(filter_offset);
         int indices_pair_size_mul_RS = indices_pair_size * RS;

spconv/csrc/sparse/maxpool.py

@@ -112,15 +112,15 @@ class IndiceMaxPool(pccm.Class):
             bool found = tv::dispatch_int_noexcept<512, 256, 128, 64, 32, 16>(out.dim(1), [](int my, int expect){{return my >= expect;}}, [&](auto V){{
                 // if out.dim(1) > value in list above, run this function.
                 // if a value is found, other value won't be executed.
-                constexpr int NumFeatures = TV_DECLTYPE(V)::value;
-                constexpr int Num0 = MaxThreads / NumFeatures;
+                int NumFeatures = TV_DECLTYPE(V)::value;
+                int Num0 = MaxThreads / NumFeatures;
                 dim3 blocks(tv::div_up(out.dim(1), NumFeatures), tv::div_up(nhot, Num0));
                 dim3 threads(NumFeatures, Num0);
                 launcher = tv::cuda::Launch(blocks, threads, cudastream);
             }});
             if (!found){{
-                constexpr int NumFeatures = 16;
-                constexpr int Num0 = MaxThreads / NumFeatures;
+                int NumFeatures = 16;
+                int Num0 = MaxThreads / NumFeatures;
                 dim3 blocks(tv::div_up(out.dim(1), NumFeatures), tv::div_up(nhot, Num0));
                 dim3 threads(NumFeatures, Num0);
                 launcher = tv::cuda::Launch(blocks, threads, cudastream);
@@ -154,15 +154,15 @@ class IndiceMaxPool(pccm.Class):
             bool found = tv::dispatch_int_noexcept<512, 256, 128, 64, 32, 16>(out.dim(1), [](int my, int expect){{return my >= expect;}}, [&](auto V){{
                 // if out.dim(1) > value in list above, run this function.
                 // if a value is found, other value won't be executed.
-                constexpr int NumFeatures = TV_DECLTYPE(V)::value;
-                constexpr int Num0 = MaxThreads / NumFeatures;
+                int NumFeatures = TV_DECLTYPE(V)::value;
+                int Num0 = MaxThreads / NumFeatures;
                 dim3 blocks(tv::div_up(out.dim(1), NumFeatures), tv::div_up(nhot, Num0));
                 dim3 threads(NumFeatures, Num0);
                 launcher = tv::cuda::Launch(blocks, threads, cudastream);
             }});
             if (!found){{
-                constexpr int NumFeatures = 16;
-                constexpr int Num0 = MaxThreads / NumFeatures;
+                int NumFeatures = 16;
+                int Num0 = MaxThreads / NumFeatures;
                 dim3 blocks(tv::div_up(out.dim(1), NumFeatures), tv::div_up(nhot, Num0));
                 dim3 threads(NumFeatures, Num0);
                 launcher = tv::cuda::Launch(blocks, threads, cudastream);

tools/README.md

@@ -21,3 +21,8 @@ docker run --rm -it -e PLAT=manylinux2014_x86_64 -v `pwd`:/io -v $HOME:/myhome s
 /io/tools/build-wheels.sh
 
 ```
+
+## Windows C++ Tips
+
+* cuda attributes such as ```__device__``` must put before return type. when you see ```warning: __declspec attributes ignored```, this means ```__device__``` is ignored because you put it after return type, then cause error.
+