Add exec env build

CMakeLists.txt

@@ -47,6 +47,7 @@ option(TRITON_ENABLE_STATS "Include statistics collections in backend" ON)
 option(TRITON_ENABLE_NVTX "Include nvtx markers collection in backend." OFF)
 option(TRITON_PYTORCH_ENABLE_TORCHTRT "Enable TorchTRT support" OFF)
 option(TRITON_PYTORCH_ENABLE_TORCHVISION "Enable Torchvision support" ON)
+option(TRITON_PYTORCH_ENABLE_PYTHON_RUNTIME "Enable Python backend runtime support" ON)
 
 set(TRITON_PYTORCH_DOCKER_IMAGE "" CACHE STRING "Docker image containing the PyTorch build required by backend.")
 set(TRITON_PYTORCH_INCLUDE_PATHS "" CACHE PATH "Paths to Torch includes")
@@ -504,12 +505,16 @@ install(
     ${INSTALL_CONFIGDIR}
 )
 
-install(
-  FILES
-    src/model.py
-  DESTINATION
-    ${CMAKE_INSTALL_PREFIX}/backends/pytorch
-)
+if (${TRITON_PYTORCH_ENABLE_PYTHON_RUNTIME})
+  install(CODE "execute_process(COMMAND bash -c ${CMAKE_CURRENT_SOURCE_DIR}/tools/gen_pb_exec_env.sh)")
+  install(
+    FILES
+      src/model.py
+      ${CMAKE_CURRENT_BINARY_DIR}/pb_exec_env_model.py.tar.gz
+    DESTINATION
+      ${CMAKE_INSTALL_PREFIX}/backends/pytorch
+  )
+endif() # TRITON_PYTORCH_ENABLE_PYTHON_RUNTIME
 
 include(CMakePackageConfigHelpers)
 configure_package_config_file(

tools/gen_pb_exec_env.sh

@@ -0,0 +1,52 @@
+#!/bin/bash
+# Copyright 2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#  * Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#  * Neither the name of NVIDIA CORPORATION nor the names of its
+#    contributors may be used to endorse or promote products derived
+#    from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+# OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+# install conda
+rm -rf ./miniconda
+wget https://repo.anaconda.com/miniconda/Miniconda3-py310_23.3.1-0-Linux-x86_64.sh
+bash Miniconda3-py310_23.3.1-0-Linux-x86_64.sh -p ./miniconda -b
+eval "$(./miniconda/bin/conda shell.bash hook)"
+
+# create conda environment
+conda create -n pt python=3.10 -y
+conda activate pt
+conda install -c conda-forge conda-pack -y
+
+# pre install step
+export PYTHONNOUSERSITE=True
+conda install -c conda-forge libstdcxx-ng=12 -y
+
+# install PyTorch
+conda install pytorch torchvision torchaudio pytorch-cuda=12.1 -c pytorch -c nvidia -y
+
+# pack environment
+rm -f pb_exec_env_model.py.tar.gz
+conda pack -o pb_exec_env_model.py.tar.gz
+
+# deactivate conda
+conda deactivate
+conda deactivate