diff --git a/machines/cmake_macros/intel.cmake b/machines/cmake_macros/intel.cmake
index 3c25605f..d084a851 100644
--- a/machines/cmake_macros/intel.cmake
+++ b/machines/cmake_macros/intel.cmake
@@ -33,8 +33,8 @@ endif()
 set(MPICC "mpicc")
 set(MPICXX "mpicxx")
 set(MPIFC "mpif90")
-set(SCC "icc")
-set(SCXX "icpc")
+set(SCC "icx")
+set(SCXX "icpx")
 set(SFC "ifort")
 if (MPILIB STREQUAL mpich)
   string(APPEND SLIBS " -mkl=cluster")
diff --git a/machines/config_machines.xml b/machines/config_machines.xml
index 2c0a8479..60200d2c 100644
--- a/machines/config_machines.xml
+++ b/machines/config_machines.xml
@@ -68,11 +68,13 @@ This allows using a different mpirun command to launch unit tests
     <value MACH="sandia-srn-sems">(s999964|climate|penn)</value>
     <value MACH="sandiatoss3">(skybridge|chama)-login</value>
     <value MACH="stampede2-skx">.*stampede2</value>
+    <value MACH="stampede3-spr">.*.stampede3.tacc.utexas.edu</value>
     <value MACH="swan">swan.*</value>
     <value MACH="theia">tfe</value>
     <value MACH="theta">theta.*</value>
     <value MACH="thunder">.*.thunder.ucar.edu</value>
     <value MACH="ubuntu-latest">$ENV{CIME_TEST_PLATFORM}:ubuntu-latest</value>
+    <value MACH="vista">.*\.vista.tacc.utexas.edu</value>
     <value MACH="zeus">(login[1,2]-ib|n[0-9][0-9][0-9]-ib)</value>
   </NODENAME_REGEX>    
 
diff --git a/machines/stampede3-spr/config_batch.xml b/machines/stampede3-spr/config_batch.xml
new file mode 100644
index 00000000..d255ef44
--- /dev/null
+++ b/machines/stampede3-spr/config_batch.xml
@@ -0,0 +1,11 @@
+  <batch_system MACH="stampede3-spr" type="slurm" >
+    <batch_submit>ssh login1 cd $CASEROOT ; sbatch</batch_submit>
+    <submit_args>
+      <argument> --time $JOB_WALLCLOCK_TIME </argument>
+      <argument> -p $JOB_QUEUE </argument>
+      <argument> --account $PROJECT </argument>
+    </submit_args>
+    <queues>
+      <queue walltimemax="24:00:00" nodemin="1" nodemax="16" default="true">spr</queue>
+    </queues>
+  </batch_system>
diff --git a/machines/stampede3-spr/config_machines.xml b/machines/stampede3-spr/config_machines.xml
new file mode 100644
index 00000000..eb5f9177
--- /dev/null
+++ b/machines/stampede3-spr/config_machines.xml
@@ -0,0 +1,70 @@
+  <machine MACH="stampede3-spr">
+    <DESC>Intel Xeon CPU MAX 9480 ("Sapphire Rapids HBM") 112 cores on two sockets (2x 56 cores), batch system is SLURM</DESC>
+    <OS>LINUX</OS>
+    <COMPILERS>intel</COMPILERS>
+    <MPILIBS>impi,mvapich</MPILIBS>
+    <CIME_OUTPUT_ROOT>$ENV{SCRATCH}</CIME_OUTPUT_ROOT>
+    <DIN_LOC_ROOT>/work/02503/edwardsj/CESM/inputdata</DIN_LOC_ROOT>
+    <DIN_LOC_ROOT_CLMFORC>/work/02503/edwardsj/CESM/inputdata/lmwg</DIN_LOC_ROOT_CLMFORC>
+    <DOUT_S_ROOT>$ENV{WORK}/archive/$CASE</DOUT_S_ROOT>
+    <BASELINE_ROOT>/work/02503/edwardsj/CESM/cesm_baselines</BASELINE_ROOT>
+    <CCSM_CPRNC>/work/02503/edwardsj/CESM/cime/tools/cprnc/cprnc.sp3</CCSM_CPRNC>
+    <GMAKE_J>4</GMAKE_J>
+    <BATCH_SYSTEM>slurm</BATCH_SYSTEM>
+    <SUPPORTED_BY>cseg</SUPPORTED_BY>
+    <MAX_TASKS_PER_NODE>112</MAX_TASKS_PER_NODE>
+    <MAX_MPITASKS_PER_NODE>112</MAX_MPITASKS_PER_NODE>
+    <mpirun mpilib="impi">
+      <executable>ibrun</executable>
+      <arguments>
+        <arg name="ntasks"> -n {{ total_tasks }} </arg>
+      </arguments>
+    </mpirun>
+    <mpirun mpilib="mvapich2">
+      <executable>ibrun</executable>
+      <arguments>
+        <arg name="ntasks"> -n {{ total_tasks }} </arg>
+      </arguments>
+    </mpirun>
+    <module_system type="module">
+      <init_path lang="perl">/opt/apps/lmod/lmod/init/perl</init_path>
+      <init_path lang="python">/opt/apps/lmod/lmod/init/env_modules_python.py</init_path>
+      <init_path lang="sh">/opt/apps/lmod/lmod/init/sh</init_path>
+      <init_path lang="csh">/opt/apps/lmod/lmod/init/csh</init_path>
+      <cmd_path lang="perl">/opt/apps/lmod/lmod/libexec/lmod perl</cmd_path>
+      <cmd_path lang="python">/opt/apps/lmod/lmod/libexec/lmod python</cmd_path>
+      <cmd_path lang="sh">module</cmd_path>
+      <cmd_path lang="csh">module</cmd_path>
+      <modules>
+        <command name="purge"></command>
+        <command name="load">TACC</command>
+        <command name="load">intel/24.0</command>
+        <command name="load">cmake/3.28.1</command>
+      </modules>
+      <modules mpilib="mvapich2">
+        <command name="load">mvapich/3.0</command>
+      </modules>
+      <modules mpilib="impi">
+        <command name="load">impi</command>
+      </modules>
+      <modules mpilib="!mpi-serial">	
+        <command name="load">pnetcdf/1.12.3</command>
+        <command name="load">parallel-netcdf/4.9.2</command>
+	<command name="load">phdf5/1.14.3</command>
+      </modules>  
+      <modules mpilib="mpi-serial">
+        <command name="load">netcdf/4.9.2</command>
+      </modules>
+    </module_system>
+    <environment_variables>
+      <env name="OMP_STACKSIZE">256M</env>
+      <env name="ESMFMKFILE">/work2/02503/edwardsj/stampede3/intel24.0/esmf/v8.6.1/lib/libO/Linux.intel.64.intelmpi.default/esmf.mk</env>
+      <env name="PIO_VERSION_MAJOR">2</env>
+      <env name="PIO_LIBDIR">/work2/02503/edwardsj/stampede3/intel24.0/parallelio2.6.3rc1/lib</env>
+      <env name="PIO_INCDIR">/work2/02503/edwardsj/stampede3/intel24.0/parallelio2.6.3rc1/include</env>
+      <env name="PIO_TYPENAME_VALID_VALUES">netcdf,pnetcdf,netcdf4p,netcdf4c</env>
+    </environment_variables>
+    <environment_variables mpilib="impi">
+      <env name="I_MPI_F90">ifort</env>
+    </environment_variables>
+  </machine>
diff --git a/machines/stampede3-spr/intel_stampede3-spr.cmake b/machines/stampede3-spr/intel_stampede3-spr.cmake
new file mode 100644
index 00000000..7c48ea22
--- /dev/null
+++ b/machines/stampede3-spr/intel_stampede3-spr.cmake
@@ -0,0 +1,11 @@
+if (MPILIB STREQUAL mpi-serial)
+  string(APPEND FFLAGS " -mcmodel medium")
+endif()
+string(APPEND CFLAGS " -xCORE-AVX512")
+string(APPEND FFLAGS " -xCORE-AVX512")
+
+string(APPEND LDFLAGS " -L$ENV{TACC_HDF5_LIB} -lhdf5 $(MKL)")
+execute_process(COMMAND ${NETCDF_PATH}/bin/nf-config --flibs OUTPUT_VARIABLE SHELL_CMD_OUTPUT_BUILD_INTERNAL_IGNORE0 OUTPUT_STRIP_TRAILING_WHITESPACE)
+string(APPEND SLIBS " ${SHELL_CMD_OUTPUT_BUILD_INTERNAL_IGNORE0} -L$ENV{TACC_HDF5_LIB} -lhdf5")
+set(TRILINOS_PATH "$ENV{TRILINOS_PATH}")
+set(HAS_F2008_CONTIGUOUS "FALSE")
diff --git a/machines/stampede3-spr/stampede3-spr.cmake b/machines/stampede3-spr/stampede3-spr.cmake
new file mode 100644
index 00000000..7b4ba5d0
--- /dev/null
+++ b/machines/stampede3-spr/stampede3-spr.cmake
@@ -0,0 +1,5 @@
+string(APPEND CPPDEFS " -DHAVE_NANOTIME")
+set(NETCDF_PATH "$ENV{TACC_NETCDF_DIR}")
+set(PIO_FILESYSTEM_HINTS "lustre")
+set(PNETCDF_PATH "$ENV{TACC_PNETCDF_DIR}")
+string(APPEND SLIBS " -Wl,-rpath,$ENV{PIO_LIBDIR}")
diff --git a/machines/vista/config_batch.xml b/machines/vista/config_batch.xml
new file mode 100644
index 00000000..fa61db1a
--- /dev/null
+++ b/machines/vista/config_batch.xml
@@ -0,0 +1,12 @@
+<batch_system MACH="vista" type="slurm" >
+  <batch_submit>ssh vista.tacc.utexas.edu cd $CASEROOT ; sbatch</batch_submit>
+  <submit_args>
+    <argument> --time $JOB_WALLCLOCK_TIME </argument>
+    <argument> -p $JOB_QUEUE </argument>
+    <argument> --account $PROJECT </argument>
+  </submit_args>
+  <queues>
+    <queue walltimemax="48:00:00" nodemin="1" nodemax="256" default="true">gg</queue>
+    <queue walltimemax="02:00:00" nodemin="1" nodemax="4" >gg-4k</queue>
+  </queues>
+</batch_system>
diff --git a/machines/vista/config_machines.xml b/machines/vista/config_machines.xml
new file mode 100644
index 00000000..292b38ae
--- /dev/null
+++ b/machines/vista/config_machines.xml
@@ -0,0 +1,60 @@
+  <machine MACH="vista">
+    <DESC>Grace Hopper ARM TACC , batch system is SLURM</DESC>
+    <OS>LINUX</OS>
+    <COMPILERS>nvhpc,gnu</COMPILERS>
+    <MPILIBS>openmpi</MPILIBS>
+    <CIME_OUTPUT_ROOT>$ENV{SCRATCH}</CIME_OUTPUT_ROOT>
+    <DIN_LOC_ROOT>/work2/02503/edwardsj/CESM/inputdata</DIN_LOC_ROOT>
+    <DIN_LOC_ROOT_CLMFORC>/work2/02503/edwardsj/CESM/inputdata/lmwg</DIN_LOC_ROOT_CLMFORC>
+    <DOUT_S_ROOT>$CIME_OUTPUT_ROOT/archive/$CASE</DOUT_S_ROOT>
+    <BASELINE_ROOT>/work2/02503/edwardsj/CESM/cesm_baselines</BASELINE_ROOT>
+    <CCSM_CPRNC>/work2/02503/edwardsj/vista/cprnc/cprnc</CCSM_CPRNC>
+    <GMAKE_J>4</GMAKE_J>
+    <BATCH_SYSTEM>slurm</BATCH_SYSTEM>
+    <SUPPORTED_BY></SUPPORTED_BY>
+    <MAX_TASKS_PER_NODE>144</MAX_TASKS_PER_NODE>
+    <MAX_MPITASKS_PER_NODE>144</MAX_MPITASKS_PER_NODE>
+    <mpirun mpilib="openmpi">
+      <executable>mpirun</executable>
+      <arguments>
+	<arg name="num_tasks"> -np {{ total_tasks }}</arg>
+      </arguments>
+    </mpirun>
+    <module_system type="module" allow_error="true">
+      <init_path lang="perl">/opt/apps/lmod/lmod/init/perl</init_path>
+      <init_path lang="python">/opt/apps/lmod/lmod/init/env_modules_python.py</init_path>
+      <init_path lang="sh">/opt/apps/lmod/lmod/init/sh</init_path>
+      <init_path lang="csh">/opt/apps/lmod/lmod/init/csh</init_path>
+      <cmd_path lang="perl">/opt/apps/lmod/lmod/libexec/lmod perl</cmd_path>
+      <cmd_path lang="python">/opt/apps/lmod/lmod/libexec/lmod python</cmd_path>
+      <cmd_path lang="sh">module</cmd_path>
+      <cmd_path lang="csh">module</cmd_path>
+      <modules>
+	<command name="purge"/>
+	<command name="load">nvidia/24.7</command> 
+        <command name="load">ucx/1.17.0</command>
+	<command name="load">openmpi/5.0.5</command>
+	<command name="load">pnetcdf/1.13.0</command>
+	<command name="load">hdf5/1.14.4</command>
+	<command name="use">/work/02503/edwardsj/vista/modulefiles/nvhpc/24.7.0/openmpi/5.0.5</command>
+	<command name="load">parallelio/2.6.3</command>
+	<command name="load">esmf/8.7.0b14</command>
+      </modules>
+    </module_system>
+    <environment_variables>
+      <env name="OMP_STACKSIZE">256M</env>
+      <env name="ESMF_RUNTIME_PROFILE">ON</env>
+      <env name="ESMF_RUNTIME_PROFILE_OUTPUT">SUMMARY</env>
+    </environment_variables>
+    <environment_variables compiler="nvhpc">
+      <env name="NETCDF_PATH">/scratch/00422/cazes/netcdf_installs/netcdf_4.7.4_nvhpc_24.7</env>
+    </environment_variables>
+    <environment_variables compiler="gnu">
+      <env name="PIO_LIBDIR">/work/02503/edwardsj/vista/pio2.6.3_gnu_openmpi/lib</env>
+      <env name="PIO_INCDIR">/work/02503/edwardsj/vista/pio2.6.3_gnu_openmpi/include</env>
+      <env name="NETCDF_PATH">/scratch/00422/cazes/netcdf_installs/netcdf_4.7.4_gcc_14.2</env>
+      <env name="PNETCDF_PATH">/scratch/00422/cazes/pnetcdf_1.13.0_gcc_14.2/</env>
+      <env name="ESMFMKFILE">/work/02503/edwardsj/vista/esmf/v8.6.2b00_gnu_openmpi/lib/libO/Linux.gfortran.64.openmpi.default/esmf.mk</env>
+      <env name="LD_LIBRARY_PATH">/home1/apps/nvidia/Linux_aarch64/24.7/compilers/lib:/scratch/projects/compilers/gcc11/openmpi/5.0.3_cpu/lib:/scratch/projects/compilers/ucx/1.17/lib/ucx:/scratch/projects/compilers/ucx/1.17/lib:/opt/apps/gcc/14.2.0/lib64:/opt/apps/gcc/14.2.0/lib</env>
+    </environment_variables>
+  </machine>
diff --git a/machines/vista/nvhpc_vista.cmake b/machines/vista/nvhpc_vista.cmake
new file mode 100644
index 00000000..d61b047b
--- /dev/null
+++ b/machines/vista/nvhpc_vista.cmake
@@ -0,0 +1,5 @@
+set(SUPPORTS_CXX "TRUE")
+string(APPEND SLIBS " -L$ENV{NETCDFHOME}/lib -lnetcdff -lnetcdf ")
+if (MPILIB STREQUAL openmpi)
+  string(APPEND SLIBS " -L$ENV{PNETCDFHOME}/lib -lpnetcdf ")
+endif()
diff --git a/machines/vista/vista.cmake b/machines/vista/vista.cmake
new file mode 100644
index 00000000..f8a605a3
--- /dev/null
+++ b/machines/vista/vista.cmake
@@ -0,0 +1,3 @@
+string(APPEND LDFLAGS " -Wl,-rpath,/scratch/00422/cazes/netcdf_installs/netcdf_4.7.4_nvhpc_24.7/lib")
+string(APPEND LDFLAGS " -Wl,-rpath,/scratch/00422/cazes/pnetcdf_1.13.0_nvhpc/lib")
+set(LAPACK_LIBDIR "/home1/apps/nvidia/Linux_aarch64/24.7/compilers/lib")