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I downloaded the code from https://ax.dev/files//saasbo_nehvi.py in the [AX tutorial page](https://ax.dev/tutorials/saasbo_nehvi.html). I increased the N_BATCH to 100, hoped the HV could be improved through more iterations. [saasbo_nehvi.zip](https://github.com/facebook/Ax/files/8825767/saasbo_nehvi.zip) Thanks.

Thanks, Balandat, for trying it. My 8G GPU is not enough either. I run it by CPU. Yes, so far the crashes I encountered were all from the shape mismatch...

I run 5 trials in a roll and 50 iterations/per trial, but the HV indicator had no improvement since the first iteration. For example the result from one of the...

Thanks @lena-kashtelyan and @dme65 for the feedback. Tried the workaround from @dme65, put the optimization loop under the following code: `with gpytorch.settings.fast_computations(log_prob=False, covar_root_decomposition=False, solves=False), gpytorch.settings.max_eager_kernel_size(512):` I still got the same...

Thanks, @saitcakmak, the crash is gone using float('inf').