I am using R for geostatistical analysis and spatiotemporal variogram calculations on a server. Although it has very high specifications but using variogramST takes a very long time (12 hours so far and still running) because I'm working on a relatively big data set. I have found some R packages that use CUDA. Is there any GPU support for geostatistics packages like gstat and spacetime?
No. Two students of mine have been working on implementing conditional simulation on a GPU; this work is found here. I'll give it a thought on how variogramST can be made faster. Have you thought about giving it a smaller data set, to begin with?