# Batch Matrix Multiplication using CuBLAS

**URL:** <https://forums.developer.nvidia.com/t/batch-matrix-multiplication-using-cublas/168775>\
**Category:** GPU-Accelerated Libraries\
**Tags:** c-plus-plus, tensorrt, cuda\
**Created:** [February 18, 2021, 8:02pm UTC](https://forums.developer.nvidia.com/t/batch-matrix-multiplication-using-cublas/168775 "2021-02-18T20:02:27Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Robert\_Crovella](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/robert_crovella/32/14043_2.png) [@Robert\_Crovella](https://forums.developer.nvidia.com/u/Robert_Crovella)\
**Post date:** [February 19, 2021, 8:54pm UTC](https://forums.developer.nvidia.com/t/batch-matrix-multiplication-using-cublas/168775/2 "2021-02-19T20:54:44Z")

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> [@Batch Matrix Multiplication using CuBLAS](https://forums.developer.nvidia.com/t/batch-matrix-multiplication-using-cublas/167325):
>
> Hi Nvidia Team, Actually, I am working on registering a Plugin for an Operator(Einsum) which is not currently supported in TensorRT. So, instead of implementing a CUDA Kernel, I want to use the CuBLAS Library for Batch Matrix Multiplication. The Equations I want to implement is(from Einsum Operator): “ntg, ncg → nct” and " nct, ncp-\> ntp"(for Batch Matrix Multiplication) Info about Einsum op: [https://github.com/onnx/onnx/blob/master/docs/Operators.md#Einsum](https://github.com/onnx/onnx/blob/master/docs/Operators.md#Einsum) I needed a guidance in using CuBL…

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