Creating the population density weighting layer.

Total avalible memory per core: 4618 Mb
Max memory to use for operation: 4768.37 Mb
Memory needs per block of data: 4306.49 Mb

Total number of blocks: 738

Error in loadNamespace(x) : there is no package called ‘snow’
Calls: popRF ... loadNamespace -> withRestarts -> withOneRestart -> doWithOneRestart
Execution halted