Update ResNet model to use models.resnet50

Author: gs-olive

tools/perf/hub.py

@@ -28,7 +28,7 @@
 BENCHMARK_MODELS = {
     "vgg16": {"model": models.vgg16(pretrained=True), "path": ["script", "pytorch"]},
     "resnet50": {
-        "model": torch.hub.load("pytorch/vision:v0.9.0", "resnet50", pretrained=True),
+        "model": models.resnet50(weights=None),
         "path": ["script", "pytorch"],
     },
     "efficientnet_b0": {

tools/perf/utils.py

@@ -7,7 +7,7 @@
 BENCHMARK_MODELS = {
     "vgg16": {"model": models.vgg16(pretrained=True), "path": ["script", "pytorch"]},
     "resnet50": {
-        "model": torch.hub.load("pytorch/vision:v0.9.0", "resnet50", pretrained=True),
+        "model": models.resnet50(weights=None),
         "path": ["script", "pytorch"],
     },
     "efficientnet_b0": {