fix the TMB warning

NEWS.md

@@ -2,6 +2,12 @@
 
 ### Bug Fixes
 
+- Previously, when the tape optimizer from `TMB` was switched on a warning would be given, instructing to turn off the tape optimizer. However, this is not necessary for reproducible results. Instead now it is checked whether the deterministic hash for the TMB tape optimizer is used, and a warning is issued otherwise.
+
+# mmrm 0.3.13
+
+### Bug Fixes
+
 - When running with `TMB` package versions below 1.9.15, MMRM fit results are not completely reproducible. While this may not be relevant for most applications, because the numerical differences are very small, we now issue a warning to the user if this is the case. We advise users to upgrade their `TMB` package versions to 1.9.15 or higher to ensure reproducibility.
 - Previously, `mmrm` ignored contrasts defined for covariates in the input data set. This is fixed now.
 - Previously, `predict` always required the response to be valid, even for unconditional predictions. This is fixed now and unconditional prediction does not require the response to be valid or present any longer.

R/fit.R

@@ -422,7 +422,7 @@ mmrm <- function(formula,
   h_valid_formula(formula)
   covariance <- h_reconcile_cov_struct(formula, covariance)
   formula_parts <- h_mmrm_tmb_formula_parts(formula, covariance)
-  h_tmb_warn_optimization()
+  h_tmb_warn_non_deterministic()
 
   if (!missing(data)) {
     attr(data, which = "dataname") <- toString(match.call()$data)

R/utils.R

@@ -524,20 +524,22 @@ h_drop_levels <- function(data, subject_var, visit_var, except) {
   data
 }
 
-#' Warn if TMB is Configured to Optimize Instantly
+#' Warn if TMB is Configured to Use Non-Deterministic Hash for Tape Optimizer
 #'
-#' This function checks the TMB configuration for the `optimize.instantly` setting.
-#' If it is set to `TRUE`, a warning is issued indicating that this may lead to
+#' This function checks the TMB configuration for the `tmbad_deterministic_hash` setting.
+#' If it is set to `FALSE`, a warning is issued indicating that this may lead to
 #' unreproducible results.
 #'
 #' @return No return value, called for side effects.
 #' @keywords internal
-h_tmb_warn_optimization <- function() {
-  tmb_config <- TMB::config("optimize.instantly", DLL = "mmrm")
-  if (tmb_config$optimize.instantly) {
+h_tmb_warn_non_deterministic <- function() {
+  tmb_config <- TMB::config(DLL = "mmrm")
+  tape_deterministic <- tmb_config$tmbad_deterministic_hash
+  if (is.null(tape_deterministic) || !tape_deterministic) {
     msg <- paste(
-      "TMB is configured to optimize instantly, this may lead to unreproducible results.",
-      "To disable this behavior, use `TMB::config(optimize.instantly = 0)`.",
+      "TMB is configured to use a non-deterministic hash for its tape optimizer,",
+      "and this may lead to unreproducible results.",
+      "To disable this behavior, use `TMB::config(tmbad_deterministic_hash = 1)`.",
       sep = "\n"
     )
     warning(msg)

tests/testthat/helper-examples.R

@@ -1,5 +1,5 @@
-# We need to disable instant optimization to run tests.
-TMB::config(optimize.instantly = 0, DLL = "mmrm")
+# We need to make sure to have deterministic hash to run tests.
+TMB::config(tmbad_deterministic_hash = 1, DLL = "mmrm")
 
 .tmb_formula <- FEV1 ~ RACE + us(AVISIT | USUBJID)
 .mmrm_tmb_example <- fit_mmrm(.tmb_formula, fev_data, weights = rep(1, nrow(fev_data)))

tests/testthat/test-fit.R

@@ -935,13 +935,13 @@ test_that("mmrm fails for vcov: Jackknife and method: Kenward-Roger", {
 })
 
 test_that("mmrm gives warning if not reproducible TMB option is used", {
-  TMB::config(optimize.instantly = 1, DLL = "mmrm")
+  TMB::config(tmbad_deterministic_hash = 0, DLL = "mmrm")
   expect_warning(
     mmrm(
       formula = FEV1 ~ ARMCD + ar1(AVISIT | USUBJID),
       data = fev_data
     ),
-    "TMB is configured to optimize instantly"
+    "TMB is configured to use a non-deterministic hash"
   )
-  TMB::config(optimize.instantly = 0, DLL = "mmrm")
+  TMB::config(tmbad_deterministic_hash = 1, DLL = "mmrm")
 })

tests/testthat/test-utils.R

@@ -323,16 +323,16 @@ test_that("h_drop_levels works as expected", {
   )
 })
 
-# h_tmb_warn_optimization ----
+# h_tmb_warn_non_deterministic ----
 
-test_that("h_tmb_warn_optimization works as expected", {
-  TMB::config(optimize.instantly = 1, DLL = "mmrm")
+test_that("h_tmb_warn_non_deterministic works as expected", {
+  TMB::config(tmbad_deterministic_hash = 0, DLL = "mmrm")
   expect_warning(
-    h_tmb_warn_optimization(),
-    "TMB is configured to optimize instantly"
+    h_tmb_warn_non_deterministic(),
+    "TMB is configured to use a non-deterministic hash"
   )
-  TMB::config(optimize.instantly = 0, DLL = "mmrm")
-  expect_silent(h_tmb_warn_optimization())
+  TMB::config(tmbad_deterministic_hash = 1, DLL = "mmrm")
+  expect_silent(h_tmb_warn_non_deterministic())
 })
 
 # h_get_na_action ----