Quantize model is slower than raw model

[jinggaizi]

I test espnet_onnx with a conformer model, I eval 100 wav 10 times and calculate the RTF only forward time, the result is

	cpu	gpu
fp32	0.0180668	0.00263397
quantize	0.0172804	0.0124609

quantize model is very slower than fp32 model on GPU and just a litter bit faster on cpu

System information:
torch /cuda / GPU: 11.0 / 11.6 / A100
cpu: AMD EPYC 7402 24-Core Processor
onnx: 1.10.1
onnxruntime-gpu : 1.13.1
espnet_onnx: 0.1.9

Have you tested the speed of the quantize model on GPU

[Masao-Someki]

Hi @jinggaizi, GPU inference of quantized model is not supported on onnxruntime, that's why it is slow.

[jinggaizi]

thanks ，I will learn tensorRT to support this mode

[1nlplearner]

I test espnet_onnx with a conformer model, I eval 100 wav 10 times and calculate the RTF only forward time, the result is

cpu gpu
fp32 0.0180668 0.00263397
quantize 0.0172804 0.0124609
quantize model is very slower than fp32 model on GPU and just a litter bit faster on cpu

System information: torch /cuda / GPU: 11.0 / 11.6 / A100 cpu: AMD EPYC 7402 24-Core Processor onnx: 1.10.1 onnxruntime-gpu : 1.13.1 espnet_onnx: 0.1.9

Have you tested the speed of the quantize model on GPU

hi, do you encounter the problem
#70