Daisy chaining vGPU across multiple VM's in MS Azure?

Hi all, we are running substantial vGPU in Azure. Our dataset and models are large. It is taking nearly 19 days to train our models with current setup. We are asking MSFT to provision A100 v4 but just keep getting rejected under sponsorship instance. Any work around so that we can reduce training time and increase speed? Anyone successful in daisy chaining vGPU across multiple VM’s in MS Azure? Thanks.