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FP16 model precision compatibility #4

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FP16 model precision compatibility #4

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asdemirel Nov 27, 2024
6337c9b
Update client.py
asdemirel Nov 27, 2024
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1 change: 1 addition & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -131,6 +131,7 @@ optional arguments:
-h, --help show this help message and exit
-m MODEL, --model MODEL
Inference model name, default yolov7
--half FP16 half-precision export
--width WIDTH Inference model input width, default 640
--height HEIGHT Inference model input height, default 640
-u URL, --url URL Inference server URL, default localhost:8001
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25 changes: 20 additions & 5 deletions client.py
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Expand Up @@ -31,6 +31,9 @@
required=False,
default='yolov7',
help='Inference model name, default yolov7')
parser.add_argument('--half',
action='store_true',
help='FP16 half-precision export')
parser.add_argument('--width',
type=int,
required=False,
Expand Down Expand Up @@ -162,7 +165,10 @@
print("Creating emtpy buffer filled with ones...")
inputs = []
outputs = []
inputs.append(grpcclient.InferInput(INPUT_NAMES[0], [1, 3, FLAGS.width, FLAGS.height], "FP32"))
if FLAGS.half:
inputs.append(grpcclient.InferInput(INPUT_NAMES[0], [1, 3, FLAGS.width, FLAGS.height], "FP16"))
else:
inputs.append(grpcclient.InferInput(INPUT_NAMES[0], [1, 3, FLAGS.width, FLAGS.height], "FP32"))
inputs[0].set_data_from_numpy(np.ones(shape=(1, 3, FLAGS.width, FLAGS.height), dtype=np.float32))
outputs.append(grpcclient.InferRequestedOutput(OUTPUT_NAMES[0]))
outputs.append(grpcclient.InferRequestedOutput(OUTPUT_NAMES[1]))
Expand Down Expand Up @@ -196,7 +202,10 @@

inputs = []
outputs = []
inputs.append(grpcclient.InferInput(INPUT_NAMES[0], [1, 3, FLAGS.width, FLAGS.height], "FP32"))
if FLAGS.half:
inputs.append(grpcclient.InferInput(INPUT_NAMES[0], [1, 3, FLAGS.width, FLAGS.height], "FP16"))
else:
inputs.append(grpcclient.InferInput(INPUT_NAMES[0], [1, 3, FLAGS.width, FLAGS.height], "FP32"))
outputs.append(grpcclient.InferRequestedOutput(OUTPUT_NAMES[0]))
outputs.append(grpcclient.InferRequestedOutput(OUTPUT_NAMES[1]))
outputs.append(grpcclient.InferRequestedOutput(OUTPUT_NAMES[2]))
Expand All @@ -209,9 +218,11 @@
sys.exit(1)
input_image_buffer = preprocess(input_image, [FLAGS.width, FLAGS.height])
input_image_buffer = np.expand_dims(input_image_buffer, axis=0)

if FLAGS.half:
input_image_buffer = input_image_buffer.astype(np.float16)
inputs[0].set_data_from_numpy(input_image_buffer)

print("debug",input_image.dtype)
print("Invoking inference...")
results = triton_client.infer(model_name=FLAGS.model,
inputs=inputs,
Expand Down Expand Up @@ -243,7 +254,6 @@
size = get_text_size(input_image, f"{COCOLabels(box.classID).name}: {box.confidence:.2f}", normalised_scaling=0.6)
input_image = render_filled_box(input_image, (box.x1 - 3, box.y1 - 3, box.x1 + size[0], box.y1 + size[1]), color=(220, 220, 220))
input_image = render_text(input_image, f"{COCOLabels(box.classID).name}: {box.confidence:.2f}", (box.x1, box.y1), color=(30, 30, 30), normalised_scaling=0.5)

if FLAGS.out:
cv2.imwrite(FLAGS.out, input_image)
print(f"Saved result to {FLAGS.out}")
Expand All @@ -261,7 +271,10 @@

inputs = []
outputs = []
inputs.append(grpcclient.InferInput(INPUT_NAMES[0], [1, 3, FLAGS.width, FLAGS.height], "FP32"))
if FLAGS.half:
inputs.append(grpcclient.InferInput(INPUT_NAMES[0], [1, 3, FLAGS.width, FLAGS.height], "FP16"))
else:
inputs.append(grpcclient.InferInput(INPUT_NAMES[0], [1, 3, FLAGS.width, FLAGS.height], "FP32"))
outputs.append(grpcclient.InferRequestedOutput(OUTPUT_NAMES[0]))
outputs.append(grpcclient.InferRequestedOutput(OUTPUT_NAMES[1]))
outputs.append(grpcclient.InferRequestedOutput(OUTPUT_NAMES[2]))
Expand Down Expand Up @@ -289,6 +302,8 @@

input_image_buffer = preprocess(frame, [FLAGS.width, FLAGS.height])
input_image_buffer = np.expand_dims(input_image_buffer, axis=0)
if FLAGS.half:
input_image_buffer = input_image_buffer.astype(np.float16)

inputs[0].set_data_from_numpy(input_image_buffer)

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