BLAS change for Apple Silicon

Revert to the "accelerate" BLAS for Apple Silicon, regardless of macOS version, as performance issues have been identified with the "newaccelerate" BLAS under the Vecchia approximation.

Author: mingdeyu

NEWS.md

@@ -5,6 +5,7 @@
 - Resolved compatibility issues when importing emulator objects saved from older releases.
 - Fixed a bug in `gp()` and `dgp()` affecting MAP estimation when `prior = "inv_ga"`.  
 - Added support for MAP estimation with no prior in `gp()` and `dgp()` by setting `prior = NULL`.
+- Reverted to the `accelerate` BLAS on Apple Silicon (for all macOS versions) due to performance issues observed with the `newaccelerate` BLAS using the Vecchia approximation.
 
 # dgpsi 2.6.0
 - Prediction speed with `predict()` enhanced for small testing data sets by reducing overhead caused by the multi-threading implementation.

R/initi_py.R

@@ -213,13 +213,13 @@ install_dgpsi <- function(env_name, py_ver, conda_path, dgpsi_ver, reinsatll = F
     macos_version <- system("sw_vers -productVersion", intern = TRUE)
     version_nums <- as.numeric(strsplit(macos_version, "\\.")[[1]])
     current_version <- version_nums[1] + version_nums[2] / 10
-    if (current_version>=13.3){
-      if (!reinsatll) reticulate::conda_create(envname = env_name, packages = c(dgpsi_ver, '"libblas=*=*newaccelerate"'),
+    #if (current_version>=13.3){
+    #  if (!reinsatll) reticulate::conda_create(envname = env_name, packages = c(dgpsi_ver, '"libblas=*=*newaccelerate"'),
+    #                                           python_version = py_ver, conda = conda_path, forge = TRUE, additional_create_args = c('--strict-channel-priority'))
+    #} else {
+    if (!reinsatll) reticulate::conda_create(envname = env_name, packages = c(dgpsi_ver, '"libblas=*=*_accelerate"'),
                                                python_version = py_ver, conda = conda_path, forge = TRUE, additional_create_args = c('--strict-channel-priority'))
-    } else {
-      if (!reinsatll) reticulate::conda_create(envname = env_name, packages = c(dgpsi_ver, '"libblas=*=*accelerate"'),
-                                               python_version = py_ver, conda = conda_path, forge = TRUE, additional_create_args = c('--strict-channel-priority'))
-    }
+    #}
   } else if ( isTRUE(grepl("Intel",benchmarkme::get_cpu()$model_name)) ){
     if (Sys.info()[["sysname"]] %in% c("Windows", "Linux")) dgpsi_ver <- c(dgpsi_ver, 'intel-cmplr-lib-rt')
     if (!reinsatll) reticulate::conda_create(envname = env_name, packages = c(dgpsi_ver, '"libblas=*=*mkl"', 'mkl>=2022'),