llnl · johnbowen42 · Jan 5, 2026 · Dec 22, 2025 · Dec 22, 2025 · Dec 22, 2025
diff --git a/cmake/SetupRajaConfig.cmake b/cmake/SetupRajaConfig.cmake
@@ -24,8 +24,6 @@ endif()
 #set(RAJA_USE_PTR_CLASS OFF)
 
 ## Fault tolerance options
-option(RAJA_ENABLE_FT "Enable fault-tolerance features" OFF)
-option(RAJA_REPORT_FT "Report on use of fault-tolerant features" OFF)
 option(RAJA_ENABLE_ITERATOR_OVERFLOW_DEBUG "Enable Overflow checking during Iterator operations" OFF)
 
 ## Timer options

diff --git a/docs/sphinx/user_guide/config_options.rst b/docs/sphinx/user_guide/config_options.rst
@@ -335,25 +335,6 @@ in units of **bytes**.
 For details on the options in this section are used, please see the 
 header file ``RAJA/include/RAJA/util/types.hpp``.
 
-Other RAJA Features
--------------------
-
-RAJA contains some features that are used mainly for development or may
-not be of general interest to RAJA users. These are turned off be default.
-They are described here for reference and completeness.
-
-      ===========================   =======================================
-      Variable                      Meaning
-      ===========================   =======================================
-      RAJA_ENABLE_FT                Enable/disable RAJA experimental
-                                    loop-level fault-tolerance mechanism
-      RAJA_REPORT_FT                Enable/disable a report of fault-
-                                    tolerance enabled run (e.g., number of 
-                                    faults detected, recovered from, 
-                                    recovery overhead, etc.)
-      ===========================   =======================================
-
-
 .. _configopt-raja-backends-label:
 
 ===============================

diff --git a/include/RAJA/config.hpp.in b/include/RAJA/config.hpp.in
@@ -114,7 +114,6 @@ static_assert(RAJA_HAS_SOME_CXX14,
  *
  ******************************************************************************
  */
-#cmakedefine RAJA_ENABLE_FT
 #cmakedefine RAJA_ENABLE_ITERATOR_OVERFLOW_DEBUG
 /*!
  ******************************************************************************
@@ -172,7 +171,7 @@ static_assert(RAJA_HAS_SOME_CXX14,
  * indicate if the back-end is present when the application/library
  * using RAJA is compiled.   An application/library can use a subset of
  * back-ends that are present in a RAJA install.
- * 
+ *
  ******************************************************************************
  */
 
@@ -271,8 +270,8 @@ namespace RAJA {
 
 #if defined(RAJA_ENABLE_OPENMP) && !defined(__HIP_DEVICE_COMPILE__)
 #if defined(_OPENMP)
-// RAJA build can be configured but downstream packages may not; guard OpenMP 
-#define RAJA_OPENMP_ACTIVE  
+// RAJA build can be configured but downstream packages may not; guard OpenMP
+#define RAJA_OPENMP_ACTIVE
 #if (_OPENMP >= 200805)
 #if defined(RAJA_ENABLE_OPENMP_TASK)
 #define RAJA_ENABLE_OPENMP_TASK_INTERNAL

diff --git a/include/RAJA/internal/fault_tolerance.hpp b/include/RAJA/internal/fault_tolerance.hpp
diff --git a/include/RAJA/pattern/forall.hpp b/include/RAJA/pattern/forall.hpp
@@ -67,8 +67,6 @@
 #include "RAJA/index/ListSegment.hpp"
 #include "RAJA/index/RangeSegment.hpp"
 
-#include "RAJA/internal/fault_tolerance.hpp"
-
 #include "RAJA/util/concepts.hpp"
 #include "RAJA/util/Span.hpp"
 #include "RAJA/util/types.hpp"

diff --git a/include/RAJA/policy/cuda/WorkGroup/WorkRunner.hpp b/include/RAJA/policy/cuda/WorkGroup/WorkRunner.hpp
@@ -377,7 +377,6 @@ struct WorkRunner<
                                          block_size),
           static_cast<cuda_dim_member_t>(num_loops), 1};
 
-      RAJA_FT_BEGIN;
 
       //
       // Setup shared memory buffers
@@ -392,8 +391,6 @@ struct WorkRunner<
         RAJA::cuda::launch((const void*)func, gridSize, blockSize, func_args,
                            shmem, r, Async);
       }
-
-      RAJA_FT_END;
     }
 
     return run_storage;

diff --git a/include/RAJA/policy/cuda/forall.hpp b/include/RAJA/policy/cuda/forall.hpp
@@ -35,8 +35,6 @@
 #include "RAJA/util/macros.hpp"
 #include "RAJA/util/types.hpp"
 
-#include "RAJA/internal/fault_tolerance.hpp"
-
 #include "RAJA/policy/cuda/MemUtils_CUDA.hpp"
 #include "RAJA/policy/cuda/policy.hpp"
 #include "RAJA/policy/cuda/raja_cudaerrchk.hpp"
@@ -570,7 +568,6 @@ forall_impl(resources::Cuda cuda_res,
     internal::CudaDims dims(1);
     DimensionCalculator::set_dimensions(dims, len, func, shmem);
 
-    RAJA_FT_BEGIN;
 
     RAJA::cuda::detail::cudaInfo launch_info;
     launch_info.gridDim  = dims.blocks;
@@ -598,8 +595,6 @@ forall_impl(resources::Cuda cuda_res,
       RAJA::expt::ParamMultiplexer::parampack_resolve(pol, f_params,
                                                       launch_info);
     }
-
-    RAJA_FT_END;
   }
 
   return resources::EventProxy<resources::Cuda>(cuda_res);

diff --git a/include/RAJA/policy/cuda/launch.hpp b/include/RAJA/policy/cuda/launch.hpp
@@ -96,7 +96,6 @@ struct LaunchExecute<
         blockSize.x > zero && blockSize.y > zero && blockSize.z > zero)
     {
 
-      RAJA_FT_BEGIN;
 
       size_t shared_mem_size = launch_params.shared_mem_size;
       RAJA::cuda::detail::cudaInfo launch_info;
@@ -126,8 +125,6 @@ struct LaunchExecute<
         RAJA::expt::ParamMultiplexer::parampack_resolve(pol, launch_reducers,
                                                         launch_info);
       }
-
-      RAJA_FT_END;
     }
 
     return resources::EventProxy<resources::Resource>(res);
@@ -207,7 +204,6 @@ struct LaunchExecute<
         blockSize.x > zero && blockSize.y > zero && blockSize.z > zero)
     {
 
-      RAJA_FT_BEGIN;
 
       size_t shared_mem_size = launch_params.shared_mem_size;
       RAJA::cuda::detail::cudaInfo launch_info;
@@ -237,8 +233,6 @@ struct LaunchExecute<
         RAJA::expt::ParamMultiplexer::parampack_resolve(pol, launch_reducers,
                                                         launch_info);
       }
-
-      RAJA_FT_END;
     }
 
     return resources::EventProxy<resources::Resource>(res);

diff --git a/include/RAJA/policy/hip/WorkGroup/WorkRunner.hpp b/include/RAJA/policy/hip/WorkGroup/WorkRunner.hpp
@@ -364,7 +364,6 @@ struct WorkRunner<
                                         block_size),
           static_cast<hip_dim_member_t>(num_loops), 1};
 
-      RAJA_FT_BEGIN;
 
       //
       // Setup shared memory buffers
@@ -379,8 +378,6 @@ struct WorkRunner<
         RAJA::hip::launch((const void*)func, gridSize, blockSize, func_args,
                           shmem, r, Async);
       }
-
-      RAJA_FT_END;
     }
 
     return run_storage;

diff --git a/include/RAJA/policy/hip/forall.hpp b/include/RAJA/policy/hip/forall.hpp
@@ -36,8 +36,6 @@
 #include "RAJA/util/macros.hpp"
 #include "RAJA/util/types.hpp"
 
-#include "RAJA/internal/fault_tolerance.hpp"
-
 #include "RAJA/policy/hip/MemUtils_HIP.hpp"
 #include "RAJA/policy/hip/policy.hpp"
 #include "RAJA/policy/hip/raja_hiperrchk.hpp"
@@ -552,7 +550,6 @@ forall_impl(resources::Hip hip_res,
     internal::HipDims dims(1);
     DimensionCalculator::set_dimensions(dims, len, func, shmem);
 
-    RAJA_FT_BEGIN;
 
     RAJA::hip::detail::hipInfo launch_info;
     launch_info.gridDim  = dims.blocks;
@@ -580,8 +577,6 @@ forall_impl(resources::Hip hip_res,
       RAJA::expt::ParamMultiplexer::parampack_resolve(pol, f_params,
                                                       launch_info);
     }
-
-    RAJA_FT_END;
   }
 
   return resources::EventProxy<resources::Hip>(hip_res);

diff --git a/include/RAJA/policy/hip/launch.hpp b/include/RAJA/policy/hip/launch.hpp
@@ -93,7 +93,6 @@ struct LaunchExecute<
         blockSize.x > zero && blockSize.y > zero && blockSize.z > zero)
     {
 
-      RAJA_FT_BEGIN;
 
       size_t shared_mem_size = launch_params.shared_mem_size;
       RAJA::hip::detail::hipInfo launch_info;
@@ -124,8 +123,6 @@ struct LaunchExecute<
         RAJA::expt::ParamMultiplexer::parampack_resolve(pol, launch_reducers,
                                                         launch_info);
       }
-
-      RAJA_FT_END;
     }
 
     return resources::EventProxy<resources::Resource>(res);
@@ -200,7 +197,6 @@ struct LaunchExecute<RAJA::policy::hip::hip_launch_t<async, nthreads>>
         blockSize.x > zero && blockSize.y > zero && blockSize.z > zero)
     {
 
-      RAJA_FT_BEGIN;
 
       size_t shared_mem_size = launch_params.shared_mem_size;
       RAJA::hip::detail::hipInfo launch_info;
@@ -231,8 +227,6 @@ struct LaunchExecute<RAJA::policy::hip::hip_launch_t<async, nthreads>>
         RAJA::expt::ParamMultiplexer::parampack_resolve(pol, launch_reducers,
                                                         launch_info);
       }
-
-      RAJA_FT_END;
     }
 
     return resources::EventProxy<resources::Resource>(res);

diff --git a/include/RAJA/policy/openmp/forall.hpp b/include/RAJA/policy/openmp/forall.hpp
@@ -31,8 +31,6 @@
 #include <omp.h>
 
 #include "RAJA/util/types.hpp"
-
-#include "RAJA/internal/fault_tolerance.hpp"
 #include "RAJA/pattern/kernel/TypeTraits.hpp"
 
 #include "RAJA/index/IndexSet.hpp"

diff --git a/include/RAJA/policy/sequential/forall.hpp b/include/RAJA/policy/sequential/forall.hpp
@@ -29,8 +29,6 @@
 
 #include "RAJA/policy/sequential/policy.hpp"
 
-#include "RAJA/internal/fault_tolerance.hpp"
-
 #include "RAJA/pattern/detail/forall.hpp"
 
 #include "RAJA/util/resource.hpp"

diff --git a/include/RAJA/policy/simd/forall.hpp b/include/RAJA/policy/simd/forall.hpp
@@ -33,8 +33,6 @@
 
 #include "RAJA/util/types.hpp"
 
-#include "RAJA/internal/fault_tolerance.hpp"
-
 #include "RAJA/policy/simd/policy.hpp"
 
 #include "RAJA/pattern/params/forall.hpp"

diff --git a/include/RAJA/policy/sycl/forall.hpp b/include/RAJA/policy/sycl/forall.hpp
@@ -38,8 +38,6 @@
 #include "RAJA/util/macros.hpp"
 #include "RAJA/util/types.hpp"
 
-#include "RAJA/internal/fault_tolerance.hpp"
-
 #include "RAJA/policy/sycl/MemUtils_SYCL.hpp"
 #include "RAJA/policy/sycl/policy.hpp"
 

diff --git a/include/RAJA/policy/sycl/launch.hpp b/include/RAJA/policy/sycl/launch.hpp
@@ -84,8 +84,6 @@ struct LaunchExecute<RAJA::sycl_launch_t<async, 0>>
     }
 
 
-    RAJA_FT_BEGIN;
-
     using LOOP_BODY  = camp::decay<LoopBody>;
     LOOP_BODY* lbody = nullptr;
     //
@@ -176,8 +174,6 @@ struct LaunchExecute<RAJA::sycl_launch_t<async, 0>>
         q->wait();
       }
     }
-    RAJA_FT_END;
-
 
     return resources::EventProxy<resources::Resource>(res);
   }