# Failed to build TensorRT engine **URL:** \ **Category:** Audio2Face (closed)\ **Created:** [August 13, 2023, 5:17am UTC](https://forums.developer.nvidia.com/t/failed-to-build-tensorrt-engine/262984 "2023-08-13T05:17:23Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![pingligamers2828](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@pingligamers2828](https://forums.developer.nvidia.com/u/pingligamers2828)\ **Post date:** [August 13, 2023, 5:17am UTC](https://forums.developer.nvidia.com/t/failed-to-build-tensorrt-engine/262984/1 "2023-08-13T05:17:23Z")
I have been using the Audio2Face app on Omniverse and it is working smoothly, except for one issue. I get the error message “Failed to build TensorRT engine” when I try to animate the face model with an audio track. The face model loads fine, but there is no movement when the audio plays. System: RTX 3050 laptop gpu 16GB RAM Audio2Face 2023.1.1 ---
**Author:** ![Simplychenable](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/simplychenable/32/271930_2.png) [@Simplychenable](https://forums.developer.nvidia.com/u/Simplychenable)\ **Post date:** [August 13, 2023, 8:22am UTC](https://forums.developer.nvidia.com/t/failed-to-build-tensorrt-engine/262984/2 "2023-08-13T08:22:22Z")
@pingligamers2828 if you could provide your latest Audio2Face log file, that’d be great. the log file can be found here: - Windows - `C:\Users\\.nvidia-omniverse\logs\Kit\Audio2Face` (2023.1 subfolder) - Linux - `~/.nvidia-omniverse/logs/Kit/Audio2Face` in the meantime, can you check to see if you are using the recommended version of graphics driver specified on [this](https://docs.omniverse.nvidia.com/audio2face/latest/common/technical-requirements.html) page? ---
**Author:** ![pingligamers2828](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@pingligamers2828](https://forums.developer.nvidia.com/u/pingligamers2828)\ **Post date:** [August 13, 2023, 6:10pm UTC](https://forums.developer.nvidia.com/t/failed-to-build-tensorrt-engine/262984/3 "2023-08-13T18:10:03Z")
[kit\_20230813\_205353.log](https://forums.developer.nvidia.com/uploads/short-url/meuYn6WbcXDXckcthyWmb1ntByy.log) (1.4 MB) studio driver version 528.24 ---
**Author:** ![Simplychenable](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/simplychenable/32/271930_2.png) [@Simplychenable](https://forums.developer.nvidia.com/u/Simplychenable)\ **Post date:** [August 13, 2023, 7:54pm UTC](https://forums.developer.nvidia.com/t/failed-to-build-tensorrt-engine/262984/4 "2023-08-13T19:54:49Z")
i am sure the dev would appreciate the upload! as a layman, it may be related to VRAM bottleneck happening: ```auto 2023-08-13 18:01:49 [475,868ms] [Info] [omni.audio2face.utility.scripts.utils] [TRTEXEC] [08/13/2023-21:01:49] [E] Error[1]: [virtualMemoryBuffer.cpp::nvinfer1::StdVirtualMemoryBufferImpl::resizePhysical::132] Error Code 1: Cuda Driver (invalid argument) 2023-08-13 18:01:49 [475,868ms] [Info] [omni.audio2face.utility.scripts.utils] [TRTEXEC] [08/13/2023-21:01:49] [W] [TRT] Requested amount of GPU memory (1024 bytes) could not be allocated. There may not be enough free memory for allocation to succeed. 2023-08-13 18:01:49 [475,886ms] [Info] [omni.audio2face.utility.scripts.utils] [TRTEXEC] [08/13/2023-21:01:49] [E] Error[2]: [globWriter.cpp::nvinfer1::builder::HybridGlobWriter::HybridGlobWriter::397] Error Code 2: OutOfMemory (no further information) 2023-08-13 18:01:49 [475,886ms] [Info] [omni.audio2face.utility.scripts.utils] [TRTEXEC] [08/13/2023-21:01:49] [E] Error[2]: [builder.cpp::nvinfer1::builder::Builder::buildSerializedNetwork::751] Error Code 2: Internal Error (Assertion engine != nullptr failed. ) 2023-08-13 18:01:49 [475,886ms] [Info] [omni.audio2face.utility.scripts.utils] [TRTEXEC] [08/13/2023-21:01:49] [E] Engine could not be created from network 2023-08-13 18:01:49 [475,886ms] [Info] [omni.audio2face.utility.scripts.utils] [TRTEXEC] [08/13/2023-21:01:49] [E] Building engine failed 2023-08-13 18:01:49 [475,886ms] [Info] [omni.audio2face.utility.scripts.utils] [TRTEXEC] [08/13/2023-21:01:49] [E] Failed to create engine from model or file. 2023-08-13 18:01:49 [475,886ms] [Info] [omni.audio2face.utility.scripts.utils] [TRTEXEC] [08/13/2023-21:01:49] [E] Engine set up failed 2023-08-13 18:01:49 [475,886ms] [Info] [omni.audio2face.utility.scripts.utils] [TRTEXEC] &&&& FAILED TensorRT.trtexec [TensorRT v8501] # c:\users\delll\appdata\local\ov\pkg\audio2face-2023.1.1\exts\omni.audio2face.inference_deps\deps\audio2face-inference-deps\bin\trtexec.exe --onnx=c:\users\delll\appdata\local\ov\pkg\audio2face-2023.1.1\exts\omni.audio2face.core_deps\deps\audio2face-nets\nets_fullface\mark_v2\network.onnx --saveEngine=C:\Users\Delll\AppData\Local\ov\cache\Kit\105.0\ed961c5c\audio2face-nets\mark_v2\network_device0_fp32.trt --device=0 --tacticSources=-CUDNN --explicitBatch ``` but i’ll have to do some more digging to see whether there are other reasons that could’ve caused this. in the interim, here’s a breakdown of the [recommended spec](https://docs.omniverse.nvidia.com/deployment/latest/ra-non-virtualized.html#nvidia-rtx-gpu-recommendations-for-professional-workstation-users) for both mobile and desktop workstation. some of the examples in A2F would require 5GB+ of VRAM from the getgo, so i could see the challenges you are experiencing on a 3050 laptop GPU. ---
**Author:** ![Ehsan.HM](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/ehsan.hm/32/230168_2.png) [@Ehsan.HM](https://forums.developer.nvidia.com/u/Ehsan.HM)\ **Post date:** [August 16, 2023, 7:36pm UTC](https://forums.developer.nvidia.com/t/failed-to-build-tensorrt-engine/262984/5 "2023-08-16T19:36:16Z")
Hi @pingligamers2828 You seem to have 2 GPUs. Could you please disable the 2nd one from `Device Manager` and try again? ---
**Author:** ![pingligamers2828](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@pingligamers2828](https://forums.developer.nvidia.com/u/pingligamers2828)\ **Post date:** [August 21, 2023, 4:04am UTC](https://forums.developer.nvidia.com/t/failed-to-build-tensorrt-engine/262984/6 "2023-08-21T04:04:22Z")
I disabled the second GPU through Device Manager and tried again, but my issue still persists. [kit\_20230821\_065305.log](https://forums.developer.nvidia.com/uploads/short-url/7yTsFIAYHK30oDNs8Qt93ZwI0bu.log) (1.1 MB) Thank you, @Simplychenable , for helping me. ---
**Author:** ![Ehsan.HM](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/ehsan.hm/32/230168_2.png) [@Ehsan.HM](https://forums.developer.nvidia.com/u/Ehsan.HM)\ **Post date:** [August 21, 2023, 6:31pm UTC](https://forums.developer.nvidia.com/t/failed-to-build-tensorrt-engine/262984/8 "2023-08-21T18:31:07Z")
Oh it seems you don’t have enough VRAM: `2023-08-21 03:54:58 [113,707ms] [Info] [gpu.foundation.plugin] Insufficient VRAM, skipping TextureLoader post-processing` ---
**Author:** ![system](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/system/32/68080_2.png) [@system](https://forums.developer.nvidia.com/u/system)\ **Post date:** [September 4, 2023, 6:31pm UTC](https://forums.developer.nvidia.com/t/failed-to-build-tensorrt-engine/262984/9 "2023-09-04T18:31:22Z")
Closed on September 4, 2023, 6:31pm UTC This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.