Fix some bugs about the usage of cinn lib. (#43586)

* Fix some bugs about the usage of cinn lib.

* Fix some unit test errors.

python/paddle/__init__.py

@@ -370,7 +370,7 @@ if is_compiled_with_cinn():
     runtime_include_dir = os.path.join(package_dir, "libs")
     cuh_file = os.path.join(runtime_include_dir, "cinn_cuda_runtime_source.cuh")
     if os.path.exists(cuh_file):
-        os.environ['runtime_include_dir'] = runtime_include_dir
+        os.environ.setdefault('runtime_include_dir', runtime_include_dir)
 
 disable_static()
 

python/setup.py.in

@@ -502,6 +502,10 @@ if '${WITH_CINN}' == 'ON':
     shutil.copy('${CINN_INCLUDE_DIR}/cinn/runtime/cuda/cinn_cuda_runtime_source.cuh', libs_path)
     package_data['paddle.libs']+=['libcinnapi.so']
     package_data['paddle.libs']+=['cinn_cuda_runtime_source.cuh']
+    if '${CMAKE_BUILD_TYPE}' == 'Release' and os.name != 'nt':
+        command = "patchelf --set-rpath '$ORIGIN/' %s/${CINN_LIB_NAME}" % libs_path
+        if os.system(command) != 0:
+            raise Exception("patch %s/${CINN_LIB_NAME} failed, command: %s" % (libs_path, command))
 
 if '${WITH_PSLIB}' == 'ON':
     shutil.copy('${PSLIB_LIB}', libs_path)