This is for legacy TH. It is currently used by the following TH functions:

• _th_scatter_ Migrate scatter and scatter_ from the TH to Aten (CUDA) #24621 Migrate scatter and scatter_ from the TH to Aten (CPU) #24757
• _th_fmod Migrate fmod and fmod_ from the TH to Aten (CUDA) #24565 Migrate fmod and fmod_ from the TH to Aten (CPU) #24701
• _th_remainder Migrate remainder and remainder_ from the TH to Aten (CPU) #24753 Migrate remainder and remainder_ from the TH to Aten (CUDA) #24615

cc @ezyang @gchanan @zou3519