Deploying the FastPitch model on Triton Inference Server

This folder contains instructions for deployment to run inference on Triton Inference Server as well as a detailed performance analysis. The purpose of this document is to help you with achieving the best inference performance.

Table of contents

Solution overview
- Introduction
- Deployment process
Setup
Quick Start Guide
Advanced
- Prepare configuration
- Latency explanation
Performance
- Offline scenario
- Online scenario
Release Notes
- Changelog
- Known issues

Solution overview

Introduction

The NVIDIA Triton Inference Server provides a datacenter and cloud inferencing solution optimized for NVIDIA GPUs. The server provides an inference service via an HTTP or gRPC endpoint, allowing remote clients to request inferencing for any number of GPU or CPU models being managed by the server.

This README provides step-by-step deployment instructions for models generated during training (as described in the model README). Additionally, this README provides the corresponding deployment scripts that ensure optimal GPU utilization during inferencing on Triton Inference Server.

Deployment process

The deployment process consists of two steps:

Conversion. The purpose of conversion is to find the best performing model format supported by Triton Inference Server. Triton Inference Server uses a number of runtime backends such as TensorRT, LibTorch and ONNX Runtime to support various model types. Refer to Triton documentation for the list of available backends.
Configuration. Model configuration on Triton Inference Server, which generates necessary configuration files.

To run benchmarks measuring the model performance in inference, perform the following steps:

Start the Triton Inference Server.

The Triton Inference Server container is started in one (possibly remote) container and ports for gRPC or REST API are exposed.
Run accuracy tests.

Produce results which are tested against given accuracy thresholds. Refer to step 8 in the Quick Start Guide.
Run performance tests.

Produce latency and throughput results for offline (static batching) and online (dynamic batching) scenarios. Refer to step 10 in the Quick Start Guide.

Setup

Ensure you have the following components:

NVIDIA Docker
PyTorch NGC container 21.02
Triton Inference Server NGC container 21.02
NVIDIA CUDA repository (use CUDA 11.2 or newer)
NVIDIA Ampere, Volta or Turing based GPU

Quick Start Guide

Running the following scripts will build and launch the container with all required dependencies for native PyTorch as well as Triton Inference Server. This is necessary for running inference and can also be used for data download, processing, and training of the model.

Clone the repository.

IMPORTANT: This step is executed on the host computer.

 git clone https://github.com/NVIDIA/DeepLearningExamples.git
 cd DeepLearningExamples/PyTorch/SpeechSynthesis/FastPitch

Setup environment in host PC and start Triton Inference Server.

 source triton/scripts/setup_environment.sh
 bash triton/scripts/docker/triton_inference_server.sh

Build and run a container that extends the NGC PyTorch container with the Triton Inference Server client libraries and dependencies.
```
 bash triton/scripts/docker/build.sh
 bash triton/scripts/docker/interactive.sh
```
Prepare the deployment configuration and create folders in Docker.

IMPORTANT: These and the following commands must be executed in the PyTorch NGC container.
```
 source triton/scripts/setup_environment.sh
```

Download and pre-process the dataset.

 bash triton/scripts/download_data.sh
 bash triton/scripts/process_dataset.sh

Setup parameters for deployment.

 source triton/scripts/setup_parameters.sh

Convert the model from training to inference format (e.g. TensorRT).

 python3 triton/convert_model.py \
     --input-path ./triton/model.py \
     --input-type pyt \
     --output-path ${SHARED_DIR}/model \
     --output-type ${FORMAT} \
     --checkpoint ${CHECKPOINT_DIR}/nvidia_fastpitch_200518.pt \
     --onnx-opset 12 \
     --model-path triton/model.py \
     --output-format ${FORMAT} \
     --dataloader triton/dataloader.py \
     --dataset-path ${DATASETS_DIR}/LJSpeech-1.1/LJSpeech-1.1_fastpitch \
     --batch-size 1 \
     --max-batch-size ${MAX_BATCH_SIZE} \
     --max-workspace-size 512 \
     --precision ${PRECISION} \
     --ignore-unknown-parameters

Configure the model on Triton Inference Server.

Generate the configuration from your model repository.

model-navigator triton-config-model \
    --model-repository ${MODEL_REPOSITORY_PATH} \
    --model-name ${MODEL_NAME} \
    --model-version 1 \
    --model-path ${SHARED_DIR}/model \
    --model-format ${CONFIG_FORMAT} \
    --model-control-mode ${TRITON_LOAD_MODEL_METHOD} \
    --load-model \
    --load-model-timeout-s 100 \
    --verbose \
    \
    --backend-accelerator ${BACKEND_ACCELERATOR} \
    --tensorrt-precision ${PRECISION} \
    --max-batch-size ${MAX_BATCH_SIZE} \
    --preferred-batch-sizes ${TRITON_PREFERRED_BATCH_SIZES} \
    --max-queue-delay-us ${TRITON_MAX_QUEUE_DELAY} \
    --engine-count-per-device gpu=${NUMBER_OF_MODEL_INSTANCES}

Run the Triton Inference Server accuracy tests.

 python3 triton/run_inference_on_triton.py \
     --server-url localhost:8001 \
     --model-name ${MODEL_NAME} \
     --model-version 1 \
     --dataloader triton/dataloader.py \
     --dataset-path ${DATASETS_DIR}/LJSpeech-1.1/LJSpeech-1.1_fastpitch \
     --batch-size ${MAX_BATCH_SIZE} \
     --output-dir ${SHARED_DIR}/accuracy_dump

 ls ${SHARED_DIR}/accuracy_dump

 python3 triton/calculate_metrics.py \
     --dump-dir ${SHARED_DIR}/accuracy_dump \
     --metrics triton/metrics.py \
     --csv ${SHARED_DIR}/accuracy_metrics.csv \
     --output-used-for-metrics OUTPUT__0

 cat ${SHARED_DIR}/accuracy_metrics.csv

Prepare performance input.

 mkdir -p ${SHARED_DIR}/input_data

 python triton/prepare_input_data.py \
     --dataloader triton/dataloader.py \
     --input-data-dir ${SHARED_DIR}/input_data \
     --dataset-path ${DATASETS_DIR}/LJSpeech-1.1/LJSpeech-1.1_fastpitch \
     --precision ${PRECISION} \
     --length ${SEQUENCE_LENGTH}

Run the Triton Inference Server performance online tests.

We want to maximize throughput within latency budget constraints. Dynamic batching is a feature of Triton Inference Server that allows inference requests to be combined by the server, so that a batch is created dynamically, resulting in a reduced average latency. You can set the Dynamic Batcher parameter max_queue_delay_microseconds to indicate the maximum amount of time you are willing to wait and preferred_batch_size to indicate your maximum server batch size in the Triton Inference Server model configuration. The measurements presented below set the maximum latency to zero to achieve the best latency possible with good performance.
```
 python triton/run_online_performance_test_on_triton.py \
     --model-name ${MODEL_NAME} \
     --input-data ${SHARED_DIR}/input_data \
     --input-shape INPUT__0:${SEQUENCE_LENGTH} \
     --batch-sizes ${BATCH_SIZE} \
     --triton-instances ${TRITON_INSTANCES} \
     --number-of-model-instances ${NUMBER_OF_MODEL_INSTANCES} \
     --result-path ${SHARED_DIR}/triton_performance_online.csv
```
Run the Triton Inference Server performance offline tests.

We want to maximize throughput. It assumes you have your data available for inference or that your data saturate to maximum batch size quickly. Triton Inference Server supports offline scenarios with static batching. Static batching allows inference requests to be served as they are received. The largest improvements to throughput come from increasing the batch size due to efficiency gains in the GPU with larger batches.
```
 python triton/run_offline_performance_test_on_triton.py \
     --model-name ${MODEL_NAME} \
     --input-data ${SHARED_DIR}/input_data \
     --input-shape INPUT__0:${SEQUENCE_LENGTH} \
     --batch-sizes ${BATCH_SIZE} \
     --triton-instances ${TRITON_INSTANCES} \
     --result-path ${SHARED_DIR}/triton_performance_offline.csv
```

Advanced

Prepare configuration

You can use the environment variables to set the parameters of your inference configuration.

Triton deployment scripts support several inference runtimes listed in the table below:

Inference runtime	Mnemonic used in scripts
TorchScript Tracing	`ts-trace`
TorchScript Tracing	`ts-script`
ONNX	`onnx`
NVIDIA TensorRT	`trt`

Example values of some key variables in one configuration:

PRECISION="fp16"
FORMAT="ts-trace"
BATCH_SIZE="1, 2, 4, 8"
BACKEND_ACCELERATOR="cuda"
MAX_BATCH_SIZE="8"
NUMBER_OF_MODEL_INSTANCES="2"
TRITON_MAX_QUEUE_DELAY="1"
TRITON_PREFERRED_BATCH_SIZES="4 8"
SEQUENCE_LENGTH="128"

Latency explanation

A typical Triton Inference Server pipeline can be broken down into the following steps:

The client serializes the inference request into a message and sends it to the server (Client Send).
The message travels over the network from the client to the server (Network).
The message arrives at the server and is deserialized (Server Receive).
The request is placed on the queue (Server Queue).
The request is removed from the queue and computed (Server Compute).
The completed request is serialized in a message and sent back to the client (Server Send).
The completed message then travels over the network from the server to the client (Network).
The completed message is deserialized by the client and processed as a completed inference request (Client Receive).

Generally, for local clients, steps 1-4 and 6-8 will only occupy a small fraction of time, compared to steps 5-6. As backend deep learning systems like Jasper are rarely exposed directly to end users, but instead only interfacing with local front-end servers, for the sake of Jasper, we can consider that all clients are local.

Performance

Offline scenario

This table lists the common variable parameters for all performance measurements:

Parameter Name	Parameter Value
Model Format	TorchScript, Trace
Backend Accelerator	CUDA
Max Batch Size	8
Number of model instances	2
Triton Max Queue Delay	1
Triton Preferred Batch Sizes	4 8

Offline: NVIDIA A40 with FP16

Our results were obtained using the following configuration:

GPU: NVIDIA A40
Backend: PyTorch
Precision: FP16
Model format: TorchScript
Conversion variant: Trace

Full tabular data

Precision	Sequence Length	Client Batch Size	Inferences/second	P90 Latency	P95 Latency	P99 Latency	Avg Latency
FP16	128	1	81.8	12.828	13.384	13.493	12.22
FP16	128	2	164	12.906	13.222	13.635	12.199
FP16	128	4	315.6	13.565	13.635	13.875	12.674
FP16	128	8	592.8	13.534	15.352	15.801	13.491

Offline: NVIDIA A40 with FP32

Our results were obtained using the following configuration:

GPU: NVIDIA A40
Backend: PyTorch
Precision: FP32
Model format: TorchScript
Conversion variant: Trace

Full tabular data

Precision	Sequence Length	Client Batch Size	Inferences/second	P90 Latency	P95 Latency	P99 Latency	Avg Latency
FP32	128	1	83.3	12.387	12.59	12.814	11.994
FP32	128	2	197	12.058	12.418	13.14	10.151
FP32	128	4	320.8	12.474	12.527	14.722	12.476
FP32	128	8	439.2	18.546	18.578	18.63	18.204

Offline: NVIDIA DGX A100 (1x A100 80GB) with FP16

Our results were obtained using the following configuration:

GPU: NVIDIA NVIDIA DGX A100 (1x A100 80GB)
Backend: PyTorch
Precision: FP16
Model format: TorchScript
Conversion variant: Trace

Full tabular data

Precision	Sequence Length	Client Batch Size	Inferences/second	P90 Latency	P95 Latency	P99 Latency	Avg Latency
FP16	128	1	152.3	6.84	6.889	7.429	6.561
FP16	128	2	298.2	6.918	7.014	7.135	6.703
FP16	128	4	537.6	7.649	7.76	7.913	7.435
FP16	128	8	844	9.723	9.809	10.027	9.482

Offline: NVIDIA DGX A100 (1x A100 80GB) with FP32

Our results were obtained using the following configuration:

GPU: NVIDIA NVIDIA DGX A100 (1x A100 80GB)
Backend: PyTorch
Precision: FP32
Model format: TorchScript
Conversion variant: Trace

Full tabular data

Precision	Sequence Length	Client Batch Size	Inferences/second	P90 Latency	P95 Latency	P99 Latency	Avg Latency
FP32	128	1	149.8	6.873	6.935	7.061	6.668
FP32	128	2	272.4	7.508	7.614	8.215	7.336
FP32	128	4	465.2	8.828	8.881	9.253	8.6
FP32	128	8	749.6	10.86	10.968	11.154	10.669

Offline: NVIDIA DGX-1 (1x V100 32GB) with FP16

Our results were obtained using the following configuration:

GPU: NVIDIA DGX-1 (1x V100 32GB)
Backend: PyTorch
Precision: FP16
Model format: TorchScript
Conversion variant: Trace

Full tabular data

Precision	Sequence Length	Client Batch Size	Inferences/second	P90 Latency	P95 Latency	P99 Latency	Avg Latency
FP16	128	1	101.3	10.039	10.14	10.333	9.866
FP16	128	2	199.2	10.191	10.359	10.911	10.034
FP16	128	4	349.2	11.541	11.629	11.807	11.45
FP16	128	8	567.2	14.266	14.307	14.426	14.107

Offline: NVIDIA DGX-1 (1x V100 32GB) with FP32

Our results were obtained using the following configuration:

GPU: NVIDIA DGX-1 (1x V100 32GB)
Backend: PyTorch
Precision: FP32
Model format: TorchScript
Conversion variant: Trace

Full tabular data

Precision	Sequence Length	Client Batch Size	Inferences/second	P90 Latency	P95 Latency	P99 Latency	Avg Latency
FP32	128	1	107.7	9.413	9.58	10.265	9.278
FP32	128	2	159	12.71	12.889	13.228	12.565
FP32	128	4	205.6	19.874	19.995	20.156	19.456
FP32	128	8	248.8	32.237	32.273	32.347	32.091

Offline: NVIDIA T4 with FP16

Our results were obtained using the following configuration:

GPU: NVIDIA T4
Backend: PyTorch
Precision: FP16
Model format: TorchScript
Conversion variant: Trace

Full tabular data

Precision	Sequence Length	Client Batch Size	Inferences/second	P90 Latency	P95 Latency	P99 Latency	Avg Latency
FP16	128	1	53.7	19.583	19.746	20.223	18.631
FP16	128	2	99.6	20.385	20.585	20.835	20.078
FP16	128	4	193.6	23.293	24.649	25.708	20.656
FP16	128	8	260	31.21	31.409	33.953	30.739

Offline: NVIDIA T4 with FP32

Our results were obtained using the following configuration:

GPU: NVIDIA T4
Backend: PyTorch
Precision: FP32
Model format: TorchScript
Conversion variant: Trace

Full tabular data

Precision	Sequence Length	Client Batch Size	Inferences/second	P90 Latency	P95 Latency	P99 Latency	Avg Latency
FP32	128	1	53.7	19.402	19.494	19.635	18.619
FP32	128	2	86.2	25.448	25.921	26.419	23.182
FP32	128	4	98.8	41.163	41.562	41.865	40.549
FP32	128	8	111.2	73.033	73.204	73.372	72.165

Online scenario

This table lists the common variable parameters for all performance measurements:

Parameter Name	Parameter Value
Model Format	TorchScript, Tracing
Backend Accelerator	CUDA
Max Batch Size	8
Number of model instances	2
Triton Max Queue Delay	1
Triton Preferred Batch Sizes	4 8

Online: NVIDIA A40 with FP16

Our results were obtained using the following configuration:

GPU: NVIDIA A40
Backend: PyTorch
Precision: FP16
Model format: TorchScript
Conversion variant: Trace

Full tabular data

Sequence Length	Concurrent client requests	Inferences/second	Client Send	Network+server Send/recv	Server Queue	Server Compute Input	Server Compute Infer	Server Compute Output	Client Recv	P50 Latency	P90 Latency	P95 Latency	P99 Latency	Avg Latency
128	1	82.1	0.061	0.38	0.033	0.036	11.501	0.122	0.032	12.166	12.884	13.175	13.541	12.165
128	2	127.6	0.062	0.361	0.02	0.066	14.944	0.195	0.033	15.246	17.223	17.546	18.699	15.681
128	3	134.6	0.048	0.271	7.119	0.05	14.54	0.192	0.066	22.009	28.693	29.875	31.877	22.286
128	4	173	0.063	0.336	7.278	0.062	15.053	0.258	0.072	23.099	29.053	30.21	32.361	23.122
128	5	212.6	0.063	0.393	7.327	0.075	15.168	0.341	0.122	23.398	29.099	30.253	32.099	23.489
128	6	246.1	0.054	0.353	7.716	0.087	15.496	0.436	0.247	24.086	30.768	31.833	33.181	24.389
128	7	290.9	0.06	0.437	7.405	0.094	15.207	0.566	0.293	23.754	30.664	31.577	33.009	24.062
128	8	320.3	0.059	0.455	7.344	0.117	15.343	1.219	0.442	24.579	31.313	32.409	34.271	24.979
128	9	344.5	0.058	0.396	7.703	0.134	16.035	1.34	0.467	25.812	31.951	33.019	34.873	26.133
128	10	378.8	0.058	0.517	7.795	0.137	16.05	1.343	0.465	26.106	32.899	34.166	36.33	26.365
128	11	413.1	0.056	0.342	7.871	0.141	16.154	1.569	0.488	26.077	33.343	34.532	36.262	26.621
128	12	427.2	0.055	0.857	8.059	0.158	16.668	1.785	0.523	28.44	34.58	36.211	37.894	28.105
128	13	465.1	0.054	0.558	8.185	0.157	16.614	1.835	0.55	27.839	34.834	36.023	37.601	27.953
128	14	537.1	0.056	0.395	7.547	0.146	15.489	1.913	0.525	25.232	32.118	33.33	35.574	26.071
128	15	536	0.054	0.382	8.166	0.174	16.504	2.122	0.555	27.507	34.662	36.181	38.592	27.957
128	16	560.8	0.055	0.472	8.434	0.176	16.377	2.446	0.601	28.267	35.102	36.282	38.229	28.561

Online: NVIDIA A40 with FP32

Our results were obtained using the following configuration:

GPU: NVIDIA A40
Backend: PyTorch
Precision: FP32
Model format: TorchScript
Conversion variant: Trace

Full tabular data

Sequence Length	Concurrent client requests	Inferences/second	Client Send	Network+server Send/recv	Server Queue	Server Compute Input	Server Compute Infer	Server Compute Output	Client Recv	P50 Latency	P90 Latency	P95 Latency	P99 Latency	Avg Latency
128	1	110.2	0.052	0.318	0.019	0.041	8.412	0.128	0.098	9.057	9.113	9.122	9.288	9.068
128	2	154.8	0.045	0.229	0.015	0.063	12.179	0.24	0.136	12.601	14.375	14.896	15.36	12.907
128	3	158.3	0.046	0.235	5.947	0.058	12.271	0.244	0.139	18.654	23.975	24.778	26.432	18.94
128	4	201.3	0.059	0.467	5.962	0.066	12.642	0.529	0.145	19.573	24.86	25.498	27.134	19.87
128	5	229.8	0.061	0.554	6.339	0.078	13.62	0.924	0.176	21.27	26.668	27.417	29.052	21.752
128	6	253.2	0.057	0.441	6.63	0.095	14.46	1.579	0.449	24.231	28.977	29.719	31.173	23.711
128	7	283.8	0.057	0.426	6.752	0.102	14.749	2.021	0.53	24.64	29.875	30.748	32.599	24.637
128	8	300.9	0.056	0.604	7.057	0.113	15.442	2.634	0.669	26.929	32.007	32.902	34.674	26.575
128	9	330.7	0.054	0.434	7.248	0.121	15.833	2.796	0.707	27.338	32.766	33.935	36.28	27.193
128	10	327.1	0.055	0.536	8.154	0.153	17.753	3.173	0.783	30.417	37.22	38.515	40.813	30.607
128	11	342.8	0.054	0.601	8.563	0.16	18.398	3.472	0.832	32.205	38.823	40.226	42.314	32.08
128	12	364.3	0.054	0.299	9.32	0.164	18.918	3.371	0.799	32.326	40.15	41.456	43.995	32.925
128	13	397.3	0.052	0.57	8.506	0.167	17.784	4.715	0.944	33.95	39.302	40.772	44.117	32.738
128	14	413.5	0.051	0.562	9.554	0.174	18.423	4.132	0.973	34.27	40.553	42.599	45.688	33.869
128	15	397.6	0.048	0.606	10.659	0.212	20.533	4.608	1.111	38.44	45.484	47.037	51.264	37.777
128	16	411.4	0.053	0.605	11.127	0.222	20.87	4.969	1.048	40.638	47.265	48.693	51.886	38.894

Online: NVIDIA DGX A100 (1x A100 80GB) with FP16

Our results were obtained using the following configuration:

GPU: NVIDIA DGX A100 (1x A100 80GB)
Backend: PyTorch
Precision: FP16
Model format: TorchScript
Conversion variant: Trace

Full tabular data

Sequence Length	Concurrent client requests	Inferences/second	Client Send	Network+server Send/recv	Server Queue	Server Compute Input	Server Compute Infer	Server Compute Output	Client Recv	P50 Latency	P90 Latency	P95 Latency	P99 Latency	Avg Latency
128	1	152.4	0.02	0.109	0.014	0.031	6.254	0.09	0.042	6.471	6.832	6.881	6.983	6.56
128	2	209.1	0.02	0.11	0.011	0.048	9.144	0.194	0.038	9.532	9.747	9.839	10.955	9.565
128	3	209	0.021	0.069	4.669	0.038	9.316	0.203	0.036	13.806	18.261	18.589	19.265	14.352
128	4	268.8	0.022	0.128	4.809	0.043	9.503	0.318	0.063	14.609	19.148	19.459	21.103	14.886
128	5	329.3	0.024	0.071	4.884	0.053	9.631	0.462	0.061	14.759	19.328	19.901	20.689	15.186
128	6	381.2	0.027	0.094	4.866	0.064	9.793	0.767	0.129	15.497	19.599	20.151	21.114	15.74
128	7	437.7	0.025	0.071	5.05	0.064	9.87	0.778	0.138	15.723	19.844	20.748	21.68	15.996
128	8	480.5	0.025	0.211	5.163	0.073	10.019	1.006	0.158	16.31	21.126	21.547	22.021	16.655
128	9	526.9	0.024	0.134	5.266	0.083	10.145	1.217	0.199	16.933	21.398	21.97	22.583	17.068
128	10	574.2	0.027	0.252	5.106	0.088	10.453	1.275	0.215	17.445	20.922	22.044	23.077	17.416
128	11	607.3	0.026	0.233	5.498	0.095	10.596	1.46	0.224	18.007	22.761	23.277	24.159	18.132
128	12	642.4	0.029	0.258	5.654	0.101	10.808	1.587	0.24	18.578	23.363	23.816	24.722	18.677
128	13	661.1	0.028	0.228	5.964	0.114	11.415	1.666	0.247	19.496	24.522	25.26	26.797	19.662
128	14	709	0.029	0.21	6.113	0.116	11.203	1.822	0.249	19.76	24.659	25.474	27.112	19.742
128	15	738.8	0.029	0.262	6.338	0.121	11.369	1.934	0.256	20.499	25.183	25.911	26.981	20.309
128	16	775.8	0.027	0.294	6.272	0.128	11.568	2.042	0.28	20.766	25.316	25.918	27.265	20.611

Online: NVIDIA DGX A100 (1x A100 80GB) with FP32

Our results were obtained using the following configuration:

GPU: NVIDIA DGX A100 (1x A100 80GB)
Backend: PyTorch
Precision: FP32
Model format: TorchScript
Conversion variant: Trace

Full tabular data

Sequence Length	Concurrent client requests	Inferences/second	Client Send	Network+server Send/recv	Server Queue	Server Compute Input	Server Compute Infer	Server Compute Output	Client Recv	P50 Latency	P90 Latency	P95 Latency	P99 Latency	Avg Latency
128	1	148.4	0.02	0.098	0.014	0.032	6.374	0.125	0.07	6.68	6.951	7.019	7.139	6.733
128	2	196.1	0.018	0.082	0.011	0.052	9.703	0.26	0.074	10.196	10.462	10.602	12.079	10.2
128	3	203.3	0.02	0.059	4.775	0.041	9.489	0.297	0.079	14.285	19.316	19.563	20.723	14.76
128	4	249.6	0.02	0.16	5.045	0.047	10.157	0.476	0.111	15.581	20.396	21.039	21.506	16.016
128	5	305.7	0.022	0.109	5.011	0.06	10.245	0.729	0.178	15.9	20.525	21.236	21.943	16.354
128	6	351.1	0.027	0.172	5.15	0.063	10.516	0.933	0.228	16.755	20.641	22.263	23.198	17.089
128	7	390.1	0.026	0.187	5.398	0.069	10.909	1.089	0.271	17.749	22.145	22.984	23.545	17.949
128	8	434.2	0.024	0.24	5.23	0.08	11.082	1.414	0.337	18.15	21.854	22.955	24.232	18.407
128	9	459.2	0.027	0.236	5.765	0.083	11.595	1.533	0.349	19.471	23.521	24.357	25.754	19.588
128	10	494.5	0.027	0.282	6.032	0.097	11.604	1.768	0.409	20.057	25.18	25.611	26.491	20.219
128	11	542.4	0.024	0.237	5.399	0.103	11.858	2.153	0.495	20.149	23.651	24.332	26.042	20.269
128	12	563	0.027	0.302	6.266	0.111	11.918	2.183	0.486	21.361	26.142	26.604	28.143	21.293
128	13	597.9	0.028	0.152	6.492	0.118	12.156	2.274	0.512	21.719	26.516	27.27	28.705	21.732
128	14	619.4	0.026	0.303	6.576	0.126	12.524	2.498	0.557	22.577	27.346	27.928	29.136	22.61
128	15	657	0.024	0.19	6.529	0.132	12.703	2.66	0.602	22.774	27.187	28.158	29.452	22.84
128	16	674.9	0.028	0.266	7.032	0.14	12.847	2.792	0.584	23.905	29.061	29.839	31.466	23.689

Online: NVIDIA DGX-1 (1x V100 32GB) with FP16

Our results were obtained using the following configuration:

GPU: NVIDIA DGX-1 (1x V100 32GB)
Backend: PyTorch
Precision: FP16
Model format: TorchScript
Conversion variant: Trace

Full tabular data

Sequence Length	Concurrent client requests	Inferences/second	Client Send	Network+server Send/recv	Server Queue	Server Compute Input	Server Compute Infer	Server Compute Output	Client Recv	P50 Latency	P90 Latency	P95 Latency	P99 Latency	Avg Latency
128	1	100.5	0.043	0.271	0.043	0.039	9.408	0.108	0.03	9.879	10.247	10.329	10.592	9.942
128	2	151.5	0.044	0.3	0.048	0.067	12.475	0.238	0.034	12.972	14.525	15.161	15.692	13.206
128	3	158.4	0.044	0.227	6.028	0.045	12.296	0.25	0.037	18.563	24.091	24.562	25.234	18.927
128	4	205.4	0.044	0.249	6.129	0.055	12.41	0.516	0.067	18.767	25.126	25.524	26.199	19.47
128	5	242.4	0.044	0.308	6.384	0.065	12.824	0.888	0.11	20.052	26.303	26.858	27.476	20.623
128	6	279.6	0.044	0.301	6.585	0.075	13.074	1.237	0.14	20.76	27.575	28.037	28.974	21.456
128	7	314	0.046	0.269	6.844	0.08	13.385	1.48	0.196	21.705	28.573	29.121	29.847	22.3
128	8	342.8	0.047	0.452	6.695	0.097	13.94	1.826	0.26	23.164	29.564	30.467	31.278	23.317
128	9	364.6	0.047	0.375	7.022	0.103	14.39	2.373	0.347	24.599	31.093	31.868	32.917	24.657
128	10	389.3	0.048	0.448	7.375	0.115	14.873	2.477	0.345	25.412	31.847	32.733	34.499	25.681
128	11	411.3	0.047	0.466	7.65	0.125	15.464	2.582	0.38	26.432	33.057	34.029	36.509	26.714
128	12	439.7	0.047	0.546	8.002	0.125	15.342	2.873	0.363	27.282	33.765	34.579	36.181	27.298
128	13	458.6	0.049	0.46	8.421	0.139	15.689	3.173	0.402	28.226	34.756	35.961	38.42	28.333
128	14	479.8	0.048	0.528	8.631	0.144	16.278	3.124	0.421	28.925	35.885	37.331	39.311	29.174
128	15	494.2	0.048	0.488	9.049	0.147	16.642	3.558	0.441	30.541	37.113	38.568	40.605	30.373
128	16	516.9	0.049	0.61	9.469	0.166	16.669	3.601	0.409	31.962	38.323	39.16	40.616	30.973

Online: NVIDIA DGX-1 (1x V100 32GB) with FP32

Our results were obtained using the following configuration:

GPU: NVIDIA DGX-1 (1x V100 32GB)
Backend: PyTorch
Precision: FP32
Model format: TorchScript
Conversion variant: Trace

Full tabular data

Sequence Length	Concurrent client requests	Inferences/second	Client Send	Network+server Send/recv	Server Queue	Server Compute Input	Server Compute Infer	Server Compute Output	Client Recv	P50 Latency	P90 Latency	P95 Latency	P99 Latency	Avg Latency
128	1	110.6	0.038	0.203	0.017	0.033	7.407	1.227	0.109	8.989	9.095	9.201	10.374	9.034
128	2	119.4	0.048	0.284	0.055	0.204	14.442	1.613	0.099	16.705	17.275	17.478	17.934	16.745
128	3	118.3	0.043	0.368	8.044	0.065	15.021	1.707	0.111	26.011	31.049	31.999	33.798	25.359
128	4	140	0.042	0.278	8.922	0.077	15.948	3.114	0.17	28.949	35.762	36.454	38.914	28.551
128	5	159.3	0.044	0.303	9.009	0.097	17.258	4.412	0.254	31.81	37.571	38.675	41.042	31.377
128	6	165.4	0.044	0.378	9.866	0.113	20.096	5.443	0.345	37.16	43.107	45.435	52.102	36.285
128	7	180.8	0.045	0.308	11.011	0.147	20.175	6.605	0.388	39.446	46.791	49.684	54.777	38.679
128	8	192.2	0.048	0.36	11.298	0.153	21.965	7.467	0.414	42.309	51.787	55.15	58.38	41.705
128	9	200.5	0.048	0.357	12.823	0.158	23.488	7.594	0.474	45.72	53.947	55.908	61.154	44.942
128	10	208.7	0.047	0.421	13.27	0.162	24.334	9.03	0.6	48.705	57.995	59.473	65.057	47.864
128	11	214.3	0.047	0.395	15.778	0.217	24.846	9.588	0.483	52.653	63.823	66.897	69.067	51.354
128	12	215.7	0.048	0.616	15.895	0.24	25.579	12.456	0.648	56.333	63.09	64.429	74.218	55.482
128	13	222.5	0.048	0.397	16.294	0.24	28.246	12.469	0.645	59.08	69.552	73.32	81.029	58.339
128	14	228.2	0.05	0.496	18.186	0.27	29.653	12.178	0.562	62.211	72.935	77.152	83.805	61.395
128	15	234	0.05	0.418	19.624	0.317	30.497	12.504	0.569	64.758	79.884	82.316	86.467	63.979
128	16	236	0.048	0.379	21.46	0.352	30.808	14.245	0.566	69.054	82.334	87.213	94.892	67.858

Online: NVIDIA T4 with FP16

Our results were obtained using the following configuration:

GPU: NVIDIA T4
Backend: PyTorch
Precision: FP16
Model format: TorchScript
Conversion variant: Trace

Full tabular data

Sequence Length	Concurrent client requests	Inferences/second	Client Send	Network+server Send/recv	Server Queue	Server Compute Input	Server Compute Infer	Server Compute Output	Client Recv	P50 Latency	P90 Latency	P95 Latency	P99 Latency	Avg Latency
128	1	53.6	0.102	0.56	0.087	0.105	17.485	0.261	0.052	18.882	19.597	19.712	19.948	18.652
128	2	129.9	0.097	0.494	0.017	0.291	12.386	2.059	0.054	15.273	16.187	16.906	21.99	15.398
128	3	122.3	0.098	0.506	7.577	0.07	14.428	1.796	0.049	24.851	30.177	32.726	34.667	24.524
128	4	141.4	0.095	0.533	8.459	0.083	16.254	2.798	0.064	28.512	34.407	36.983	40.366	28.286
128	5	153.1	0.097	0.613	9.277	0.095	18.608	3.878	0.114	32.559	40.931	43.966	47.479	32.682
128	6	168.6	0.098	0.587	9.407	0.115	20.512	4.603	0.222	35.182	45.268	47.867	51.381	35.544
128	7	184.3	0.094	0.697	9.432	0.13	21.351	6.037	0.259	36.83	50.213	54.732	62.848	38
128	8	187	0.093	0.665	11.347	0.155	23.914	6.27	0.257	41.379	57.516	62.209	66.726	42.701
128	9	199.5	0.094	0.775	11.261	0.163	24.54	7.938	0.385	44.016	58.752	65.017	71.694	45.156
128	10	210.2	0.091	0.897	11.848	0.183	24.714	9.401	0.449	44.964	65.754	73.463	79.672	47.583
128	11	217.3	0.092	0.838	12.487	0.202	25.694	10.75	0.523	47.864	69.923	77.628	85.826	50.586
128	12	219.6	0.09	0.771	14.799	0.206	27.126	11.095	0.495	52.728	73.813	79.036	95.389	54.582
128	13	227.6	0.09	0.758	14.886	0.247	29.603	10.932	0.527	54.152	80.264	86.911	97.091	57.043
128	14	235	0.093	0.64	15.942	0.26	29.521	12.755	0.519	56.969	82.85	89.545	104.486	59.73
128	15	236.7	0.092	0.686	17.532	0.294	31.765	12.432	0.557	59.681	91.908	100.856	119.919	63.358
128	16	242.3	0.091	0.693	16.804	0.289	32.901	14.663	0.559	63.006	96.607	99.376	108.381	66

Online: NVIDIA T4 with FP32

Our results were obtained using the following configuration:

GPU: NVIDIA T4
Backend: PyTorch
Precision: FP32
Model format: TorchScript
Conversion variant: Trace

Full tabular data

Sequence Length	Concurrent client requests	Inferences/second	Client Send	Network+server Send/recv	Server Queue	Server Compute Input	Server Compute Infer	Server Compute Output	Client Recv	P50 Latency	P90 Latency	P95 Latency	P99 Latency	Avg Latency
128	1	53.5	0.103	0.57	0.085	0.108	16.195	1.506	0.112	18.777	19.448	19.513	19.697	18.679
128	2	78.1	0.097	0.476	0.021	0.37	19.778	4.735	0.113	19.266	48.198	50.37	51.933	25.59
128	3	78.9	0.092	0.511	12.039	0.126	20.597	4.568	0.104	34.628	55.275	62.943	69.63	38.037
128	4	86.4	0.094	0.492	14.143	0.163	24.336	6.955	0.16	42.424	69.874	73.991	81.048	46.343
128	5	87.4	0.096	0.569	16.207	0.174	28.415	11.335	0.344	52.867	85.206	92.721	106.801	57.14
128	6	91.5	0.094	0.644	16.815	0.207	33.454	13.923	0.471	62.079	96.925	100.852	115.651	65.608
128	7	96.3	0.094	0.622	18.675	0.219	36.551	16.332	0.621	69.447	103.115	108.706	130.277	73.114
128	8	95.7	0.096	0.642	18.336	0.24	41.708	21.953	0.868	79.887	113.645	117.36	145.151	83.843
128	9	95.2	0.095	1.01	18.682	0.249	48.823	24.68	1.059	90.799	126.669	129.592	167.038	94.598
128	10	102.6	0.093	0.767	19.687	0.26	46.234	29.561	1.219	95.095	121.245	128.962	170.8	97.821
128	11	104.9	0.09	0.629	23.884	0.317	49.746	29.621	1.19	101.884	133.615	141.351	186.759	105.477
128	12	103.8	0.093	0.427	29.107	0.375	52.974	32.07	1.145	113.659	154.182	172.429	204.619	116.191
128	13	104	0.096	0.458	30.526	0.433	58.923	33.204	1.247	120.19	174.267	189.165	216.331	124.887
128	14	106.1	0.091	0.401	38.587	0.443	60.805	30.968	1.081	127.547	182.202	198.122	222.625	132.376
128	15	106.5	0.09	1.093	38.282	0.47	63.64	36.439	1.256	138.848	182.504	203.954	219.243	141.27
128	16	104.9	0.089	0.365	41.181	0.51	68.818	39.515	1.402	148.399	223.069	230.082	257.301	151.88

Release Notes

We’re constantly refining and improving our performance on AI and HPC workloads even on the same hardware with frequent updates to our software stack. For our latest performance data refer to these pages for AI and HPC benchmarks.

Changelog

April 2021

Initial release

Known issues

There are no known issues with this model.