From 2c4ee9922796274555caab705ef92a5bb74e1e10 Mon Sep 17 00:00:00 2001
From: Megvii Engine Team <megengine@megvii.com>
Date: Wed, 4 Aug 2021 11:23:52 +0800
Subject: [PATCH] fix(dnn): short cutlass filename in windows

GitOrigin-RevId: 83a43fdf87b1fd3480a5d59584bf60e3cd5dd5af
---
 dnn/scripts/cutlass_generator/BUILD               | 12 ++++++------
 dnn/scripts/cutlass_generator/conv2d_operation.py |  9 +++++++--
 dnn/scripts/cutlass_generator/gemm_operation.py   | 12 +++++++++---
 dnn/scripts/cutlass_generator/generator.py        |  9 +++++----
 dnn/scripts/cutlass_generator/library.py          |  3 +++
 5 files changed, 30 insertions(+), 15 deletions(-)

diff --git a/dnn/scripts/cutlass_generator/BUILD b/dnn/scripts/cutlass_generator/BUILD
index 27c4529e3..cb54d00c7 100644
--- a/dnn/scripts/cutlass_generator/BUILD
+++ b/dnn/scripts/cutlass_generator/BUILD
@@ -4,12 +4,12 @@ genrule(
     name = "cutlass_kimpls",
     outs = cutlass_gen_list,
     cmd = """GEN=$(location //brain/megbrain/dnn/scripts/cutlass_generator:generator.py)
-          python3 $$GEN --operations gemm --type simt $(@D)
-          python3 $$GEN --operations gemv --type simt $(@D)
-          python3 $$GEN --operations deconv --type simt $(@D)
-          python3 $$GEN --operations conv2d --type simt $(@D)
-          python3 $$GEN --operations conv2d --type tensorop8816 $(@D)
-          python3 $$GEN --operations conv2d --type tensorop8832 $(@D)
+          CUTLASS_WITH_LONG_PATH=true python3 $$GEN --operations gemm --type simt $(@D)
+          CUTLASS_WITH_LONG_PATH=true python3 $$GEN --operations gemv --type simt $(@D)
+          CUTLASS_WITH_LONG_PATH=true python3 $$GEN --operations deconv --type simt $(@D)
+          CUTLASS_WITH_LONG_PATH=true python3 $$GEN --operations conv2d --type simt $(@D)
+          CUTLASS_WITH_LONG_PATH=true python3 $$GEN --operations conv2d --type tensorop8816 $(@D)
+          CUTLASS_WITH_LONG_PATH=true python3 $$GEN --operations conv2d --type tensorop8832 $(@D)
           """,
     tools = ["//brain/megbrain/dnn/scripts/cutlass_generator:generator.py"],
     visibility = ["//visibility:public"],
diff --git a/dnn/scripts/cutlass_generator/conv2d_operation.py b/dnn/scripts/cutlass_generator/conv2d_operation.py
index 7acbc7087..a931a8fbb 100644
--- a/dnn/scripts/cutlass_generator/conv2d_operation.py
+++ b/dnn/scripts/cutlass_generator/conv2d_operation.py
@@ -531,9 +531,10 @@ void initialize_${configuration_name}(Manifest &manifest) {
 ###################################################################################################
 
 class EmitConvSingleKernelWrapper():
-  def __init__(self, kernel_path, operation):
+  def __init__(self, kernel_path, operation, short_path=False):
     self.kernel_path = kernel_path
     self.operation = operation
+    self.short_path = short_path
 
     if self.operation.conv_kind == ConvKind.Fprop:
       self.instance_emitter = EmitConv2dInstance()
@@ -582,7 +583,11 @@ void initialize_${operation_name}(Manifest &manifest) {
 
   #
   def __enter__(self):
-    self.kernel_path = os.path.join(self.kernel_path, "%s.cu" % self.operation.procedural_name()) 
+    if self.short_path:
+      self.kernel_path = os.path.join(self.kernel_path, "%s.cu" % GlobalCnt.cnt)
+      GlobalCnt.cnt += 1
+    else:
+      self.kernel_path = os.path.join(self.kernel_path, "%s.cu" % self.operation.procedural_name())
     self.kernel_file = open(self.kernel_path, "w")
     self.kernel_file.write(self.header_template)
     return self
diff --git a/dnn/scripts/cutlass_generator/gemm_operation.py b/dnn/scripts/cutlass_generator/gemm_operation.py
index fd95f0bba..90b1c9405 100644
--- a/dnn/scripts/cutlass_generator/gemm_operation.py
+++ b/dnn/scripts/cutlass_generator/gemm_operation.py
@@ -994,7 +994,8 @@ void initialize_${configuration_name}(Manifest &manifest) {
 ###################################################################################################
 
 class EmitGemmSingleKernelWrapper:
-  def __init__(self, kernel_path, gemm_operation):
+  def __init__(self, kernel_path, gemm_operation, short_path=False):
+    self.short_path = short_path
     self.kernel_path = kernel_path
     self.operation = gemm_operation
 
@@ -1070,10 +1071,11 @@ void initialize_${operation_name}(Manifest &manifest) {
 ###################################################################################################
 
 class EmitGemvSingleKernelWrapper:
-  def __init__(self, kernel_path, gemm_operation, wrapper_path):
+  def __init__(self, kernel_path, gemm_operation, wrapper_path, short_path=False):
     self.kernel_path = kernel_path
     self.wrapper_path = wrapper_path
     self.operation = gemm_operation
+    self.short_path = short_path
 
     self.wrapper_template = """
 template void megdnn::cuda::cutlass_wrapper::
@@ -1107,7 +1109,11 @@ ${operation_instance}
 """
   #
   def __enter__(self):
-    self.kernel_path = os.path.join(self.kernel_path, "%s.cu" % self.operation.procedural_name())
+    if self.short_path:
+      self.kernel_path = os.path.join(self.kernel_path, "%s.cu" % GlobalCnt.cnt) 
+      GlobalCnt.cnt += 1
+    else:
+      self.kernel_path = os.path.join(self.kernel_path, "%s.cu" % self.operation.procedural_name())
     self.kernel_file = open(self.kernel_path, "w")
     self.kernel_file.write(SubstituteTemplate(self.header_template, {
       'wrapper_path': self.wrapper_path,
diff --git a/dnn/scripts/cutlass_generator/generator.py b/dnn/scripts/cutlass_generator/generator.py
index 73018de6c..b49aec21f 100644
--- a/dnn/scripts/cutlass_generator/generator.py
+++ b/dnn/scripts/cutlass_generator/generator.py
@@ -8,6 +8,7 @@ import enum
 import os.path
 import shutil
 import argparse
+import platform
 
 from library import *
 from manifest import *
@@ -634,7 +635,7 @@ if __name__ == "__main__":
                       default='simt', help="kernel type of CUTLASS kernel generator")
 
   gemv_wrapper_path = "src/cuda/matrix_mul/cutlass_matrix_mul_wrapper_batched_gemv_strided.cuinl"
-
+  short_path = (platform.system() == "Windows" or platform.system().find('NT') >= 0) and ('true'!= os.getenv("CUTLASS_WITH_LONG_PATH", default='False').lower())
   args = parser.parse_args()
 
   if args.operations == "gemm":
@@ -648,15 +649,15 @@ if __name__ == "__main__":
   
   if args.operations == "conv2d" or args.operations == "deconv":
     for operation in operations:
-      with EmitConvSingleKernelWrapper(args.output, operation) as emitter:
+      with EmitConvSingleKernelWrapper(args.output, operation, short_path) as emitter:
         emitter.emit()
   elif args.operations == "gemm":
     for operation in operations:
-      with EmitGemmSingleKernelWrapper(args.output, operation) as emitter:
+      with EmitGemmSingleKernelWrapper(args.output, operation, short_path) as emitter:
         emitter.emit()
   elif args.operations == "gemv":
     for operation in operations:
-      with EmitGemvSingleKernelWrapper(args.output, operation, gemv_wrapper_path) as emitter:
+      with EmitGemvSingleKernelWrapper(args.output, operation, gemv_wrapper_path, short_path) as emitter:
         emitter.emit()
 
   if args.operations != "gemv":
diff --git a/dnn/scripts/cutlass_generator/library.py b/dnn/scripts/cutlass_generator/library.py
index ae6ff2462..0559f28f7 100644
--- a/dnn/scripts/cutlass_generator/library.py
+++ b/dnn/scripts/cutlass_generator/library.py
@@ -612,3 +612,6 @@ class TensorDescription:
     self.complex_transform = complex_transform
 
 ###################################################################################################
+
+class GlobalCnt:
+  cnt = 0
\ No newline at end of file
-- 
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