Updated hpvm_installer for a few things:

Added nvdla/sw as a submodule;
Relaxed python version req to be >= 3.6;
Only install torch2hpvm
Don't download DNN params

.gitmodules

@@ -2,3 +2,6 @@
 	path = hpvm/projects/predtuner
 	url = ../predtuner.git
 	branch = hpvm
+[submodule "hpvm/projects/sw"]
+	path = hpvm/projects/sw
+	url = https://github.com/nvdla/sw.git

sw @ 79538ba1

+Subproject commit 79538ba1b52b040a4a4645f630e457fa01839e90

hpvm/scripts/hpvm_installer.py

@@ -18,9 +18,6 @@ MODEL_PARAMS_TAR = Path("model_params.tar.gz")
 MODEL_PARAMS_DIR = ROOT_DIR / "test/dnn_benchmarks/model_params"
 MODEL_PARAMS_LINK = "https://databank.illinois.edu/datafiles/o3izd/download"
 
-NVDLA_URL = "https://github.com/nvdla/sw.git"
-NVDLA_DIR = ROOT_DIR / "projects/sw"
-
 LINKS = [
     "CMakeLists.txt",
     "cmake",
@@ -34,14 +31,9 @@ MAKE_TARGETS = ["hpvm-clang"]
 MAKE_TEST_TARGETS = ["check-hpvm-dnn", "check-hpvm-pass"]
 
 # Relative to project root which is __file__.parent.parent
-PY_PACKAGES = [
-    "projects/hpvm-profiler",
-    "projects/predtuner",
-    "projects/torch2hpvm",
-    "projects/keras",
-]
+PY_PACKAGES = ["projects/torch2hpvm"]
 
-PYTHON_REQ = ((3, 6), (3, 7))  # This means >= 3.6, < 3.7
+PYTHON_REQ = (3, 6)  # This means >= 3.6
 
 
 def parse_args(args=None):
@@ -90,12 +82,6 @@ def parse_args(args=None):
     parser.add_argument(
         "-r", "--run-tests", action="store_true", help="Build and run test cases"
     )
-    parser.add_argument(
-        "--no-pypkg", action="store_true", help="Don't build the HPVM Python Packages"
-    )
-    parser.add_argument(
-        "--no-params", action="store_true", help="Don't download DNN model parameters"
-    )
     parser.add_argument(
         "cmake_args",
         type=str,
@@ -163,14 +149,6 @@ Arguments: """
     if args.cmake_args.strip() != "":
         args.cmake_args = [f"-{arg}" for arg in args.cmake_args.split(" ")]
 
-    args.no_pypkg = not input_with_check(
-        "Install HPVM Python Packages (recommended)? [y/n]: ",
-        parse_yn,
-        "Please enter y or n",
-    )
-    args.no_params = not input_with_check(
-        "Download DNN weights (recommended)? [y/n]: ", parse_yn, "Please enter y or n"
-    )
     args.run_tests = input_with_check(
         "Build and run tests? [y/n]: ", parse_yn, "Please enter y or n"
     )
@@ -185,7 +163,6 @@ def print_args(args):
     print(f"  Build system: {build_sys}")
     print(f"  Threads: {args.parallel}")
     print(f"  Targets: {args.targets}")
-    print(f"  Download DNN weights: {not args.no_params}")
     print(f"  Run tests: {args.run_tests}")
     print(f"  CMake arguments: {args.cmake_args}")
 
@@ -193,14 +170,12 @@ def print_args(args):
 def check_python_version():
     from sys import version_info, version, executable
 
-    lowest, highest = PYTHON_REQ
-    if not (lowest <= version_info < highest):
-        lowest_str = ".".join([str(n) for n in lowest])
-        highest_str = ".".join([str(n) for n in highest])
+    if version_info < PYTHON_REQ:
+        lowest_str = ".".join([str(n) for n in PYTHON_REQ])
         version_short_str = ".".join([str(n) for n in version_info])
         raise RuntimeError(
             f"You are using Python {version_short_str}, unsupported by HPVM. "
-            f"HPVM requires Python version '{lowest_str} <= version < {highest_str}'.\n"
+            f"HPVM requires Python version 'version >= {lowest_str}'.\n"
             f"(Current Python binary: {executable})\n"
             f"Detailed version info:\n{version}"
         )
@@ -268,15 +243,6 @@ def check_download_model_params():
         MODEL_PARAMS_TAR.unlink()
 
 
-def check_download_nvdla_sw():
-    if NVDLA_DIR.is_dir():
-        print("Found NVDLA compiler, not downloading it again.")
-        return
-    print(f"Downloading the NVDLA compiler into {NVDLA_DIR}...")
-    print(f"=============================")
-    check_call(["git", "clone", NVDLA_URL, NVDLA_DIR])
-
-
 def link_and_patch():
     from os import symlink
 
@@ -370,16 +336,13 @@ def main():
 
     # Don't parse args if no args given -- use prompt mode
     args = prompt_args() if len(argv) == 1 else parse_args()
-    if not args.no_pypkg:
-        check_python_version()
+    # Help users pull submodule in case they forgot
+    check_call(["git", "submodule", "update", "--init", "--recursive"])
+    check_python_version()
     print_args(args)
-    check_download_nvdla_sw()
     check_download_llvm_clang()
     link_and_patch()
-    if not args.no_params:
-        check_download_model_params()
-    if not args.no_pypkg:
-        install_py_packages()
+    install_py_packages()
     if args.no_build:
         print(
             """