Improve compatibility for mac

[ynx0]

Fixes:

• make the downloader script work on mac (wget isn't available by default)
• fix deps so that at least mac gets CPU provider running

I imagine this works on linux as well but haven't tested it out.

onnxruntime-gpu is not available for mac (see platform matrix)

I've tried to get the CoreML provider to work but I'm having trouble getting it all the way through so I haven't included that work here. Help would be appreciated.

[ynx0]

Adding onnxruntime-silicon==1.16.3; sys_platform == 'darwin' to requirements.txt seems to work (caveat: requires macos 14) with the following patch.

 tinyphysics.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/tinyphysics.py b/tinyphysics.py
index b016b0a..6200c53 100644
--- a/tinyphysics.py
+++ b/tinyphysics.py
@@ -54,10 +54,15 @@ class TinyPhysicsModel:
     options.intra_op_num_threads = 1
     options.inter_op_num_threads = 1
     options.log_severity_level = 3
-    if 'CUDAExecutionProvider' in ort.get_available_providers():
+    providers = ort.get_available_providers()
+    if 'CUDAExecutionProvider' in providers:
       if debug:
         print("ONNX Runtime is using GPU")
       provider = ('CUDAExecutionProvider', {'cudnn_conv_algo_search': 'DEFAULT'})
+    elif 'CoreMLExecutionProvider' in providers:
+      if debug:
+        print("ONNX Runtime is using CoreMLExecutionProvider")
+      provider = ('CoreMLExecutionProvider', dict())
     else:
       if debug:
         print("ONNX Runtime is using CPU")
--
2.45.1

Only problem is it results in a 0.3 second slowdown 😬

[nuwandavek]

Replaced onnxruntime-gpu requirement with simply onnxruntime. This is fast enough for the reports, and should work well on mac?
Feel free to reopen the PR / make an issue if it does not.

[wtoth]

Note to those using macos <14.X you can just downgrade the package to 1.16.0 or lower
onnxruntime-silicon==1.16.0; sys_platform == 'darwin'