diff --git a/cicecore/cicedyn/analysis/ice_history.F90 b/cicecore/cicedyn/analysis/ice_history.F90
index 32f744477..a0313c56c 100644
--- a/cicecore/cicedyn/analysis/ice_history.F90
+++ b/cicecore/cicedyn/analysis/ice_history.F90
@@ -2325,9 +2325,11 @@ subroutine accum_hist (dt)
       ! increment field
       !---------------------------------------------------------------
 
+#ifndef __INTEL_LLVM_COMPILER
       !$OMP PARALLEL DO PRIVATE(iblk,i,j,ilo,ihi,jlo,jhi,this_block, &
       !$OMP             k,n,qn,ns,sn,rho_ocn,rho_ice,Tice,Sbr,phi,rhob,dfresh,dfsalt,sicen, &
       !$OMP             worka,workb,worka3,Tinz4d,Sinz4d,Tsnz4d)
+#endif
 
       do iblk = 1, nblocks
          this_block = get_block(blocks_ice(iblk),iblk)
@@ -3637,7 +3639,9 @@ subroutine accum_hist (dt)
          call accum_hist_snow (iblk)
 
       enddo                     ! iblk
+#ifndef __INTEL_LLVM_COMPILER
       !$OMP END PARALLEL DO
+#endif
 
       call icepack_warnings_flush(nu_diag)
       if (icepack_warnings_aborted()) call abort_ice(error_message=subname, &
diff --git a/cicecore/drivers/nuopc/cmeps/ice_prescribed_mod.F90 b/cicecore/drivers/nuopc/cmeps/ice_prescribed_mod.F90
index 2436783bc..f27c34fdd 100644
--- a/cicecore/drivers/nuopc/cmeps/ice_prescribed_mod.F90
+++ b/cicecore/drivers/nuopc/cmeps/ice_prescribed_mod.F90
@@ -446,8 +446,7 @@ subroutine ice_prescribed_phys()
                 !--------------------------------------------------------------------
                 ! compute aggregate ice state and open water area
                 !--------------------------------------------------------------------
-                call icepack_aggregate(ncat  = ncat,                  &
-                                       aicen = aicen(i,j,:,iblk),     &
+                call icepack_aggregate(aicen = aicen(i,j,:,iblk),     &
                                        trcrn = trcrn(i,j,1:ntrcr,:,iblk), &
                                        vicen = vicen(i,j,:,iblk),     &
                                        vsnon = vsnon(i,j,:,iblk),     &
@@ -456,7 +455,6 @@ subroutine ice_prescribed_phys()
                                        vice  = vice (i,j,  iblk),     &
                                        vsno  = vsno (i,j,  iblk),     &
                                        aice0 = aice0(i,j,  iblk),     &
-                                       ntrcr = ntrcr,                 &
                                        trcr_depend   = trcr_depend(1:ntrcr),   &
                                        trcr_base     = trcr_base(1:ntrcr,:),   &
                                        n_trcr_strata = n_trcr_strata(1:ntrcr), &
diff --git a/configuration/scripts/cice.batch.csh b/configuration/scripts/cice.batch.csh
index 520d165a3..a68852602 100755
--- a/configuration/scripts/cice.batch.csh
+++ b/configuration/scripts/cice.batch.csh
@@ -34,12 +34,17 @@ cat >> ${jobfile} << EOFB
 EOFB
 
 else if (${ICE_MACHINE} =~ derecho*) then
+set memstr = ""
+if (${ncores} <= 8 && ${runlength} <= 1 && ${batchmem} <= 20) then
+  set queue = "develop"
+  set memstr = ":mem=${batchmem}GB"
+endif
 cat >> ${jobfile} << EOFB
 #PBS -q ${queue}
 #PBS -l job_priority=regular
 #PBS -N ${ICE_CASENAME}
 #PBS -A ${acct}
-#PBS -l select=${nnodes}:ncpus=${corespernode}:mpiprocs=${taskpernodelimit}:ompthreads=${nthrds}
+#PBS -l select=${nnodes}:ncpus=${corespernode}:mpiprocs=${taskpernodelimit}:ompthreads=${nthrds}${memstr}
 #PBS -l walltime=${batchtime}
 #PBS -j oe
 #PBS -W umask=022
diff --git a/configuration/scripts/machines/Macros.derecho_intelclassic b/configuration/scripts/machines/Macros.derecho_intelclassic
index e0ffd44e4..f2250b84c 100644
--- a/configuration/scripts/machines/Macros.derecho_intelclassic
+++ b/configuration/scripts/machines/Macros.derecho_intelclassic
@@ -1,5 +1,5 @@
 #==============================================================================
-# Makefile macros for NCAR derecho, intel compiler
+# Makefile macros for NCAR derecho, intelclassic compiler
 #==============================================================================
 
 CPP        := fpp
diff --git a/configuration/scripts/machines/Macros.derecho_inteloneapi b/configuration/scripts/machines/Macros.derecho_inteloneapi
index ae6640388..23825d6ca 100644
--- a/configuration/scripts/machines/Macros.derecho_inteloneapi
+++ b/configuration/scripts/machines/Macros.derecho_inteloneapi
@@ -1,5 +1,5 @@
 #==============================================================================
-# Makefile macros for NCAR derecho, intel compiler
+# Makefile macros for NCAR derecho, inteloneapi compiler
 #==============================================================================
 
 CPP        := fpp
@@ -12,11 +12,12 @@ FFLAGS     := -fp-model precise -convert big_endian -assume byterecl -ftz -trace
 FFLAGS_NOOPT:= -O0
 
 ifeq ($(ICE_BLDDEBUG), true)
-  FFLAGS     += -O0 -g -check uninit -check bounds -check pointers -fpe0 -check noarg_temp_created -link_mpi=dbg
-#  FFLAGS     += -O0 -g -check all -fpe0 -ftrapuv -fp-model except -check noarg_temp_created -link_mpi=dbg -stand f08
-#  FFLAGS     += -O0 -g -check all -fpe0 -ftrapuv -fp-model except -check noarg_temp_created -init=snan,arrays -link_mpi=dbg
+# -check uninit is needed on the ld step but it still throws errors in 2023.* and 2024.0.*, likely compiler bug
+  FFLAGS     += -O0 -g  -check bounds -check pointers -fpe0 -check noarg_temp_created -link_mpi=dbg
+#  FFLAGS     += -O0 -g -check uninit -check bounds -check pointers -fpe0 -check noarg_temp_created -link_mpi=dbg
+#  LDFLAGS    += -check uninit
 else
-  FFLAGS     += -O2
+  FFLAGS     += -O1
 endif
 
 SCC   := icx
diff --git a/configuration/scripts/machines/env.derecho_cray b/configuration/scripts/machines/env.derecho_cray
index 47cebd5cb..4e886ab71 100644
--- a/configuration/scripts/machines/env.derecho_cray
+++ b/configuration/scripts/machines/env.derecho_cray
@@ -10,16 +10,16 @@ if ("$inp" != "-nomodules") then
 source ${MODULESHOME}/init/csh
 
 module --force purge
-module load ncarenv/23.06
+module load ncarenv/23.09
 module load craype
-module load cce/15.0.1
+module load cce/16.0.1
 module load ncarcompilers
-module load cray-mpich/8.1.25
+module load cray-mpich/8.1.27
 module load netcdf/4.9.2
 #module load hdf5/1.12.2
 #module load netcdf-mpi/4.9.2
 
-module load cray-libsci/23.02.1.1
+module load cray-libsci/23.09.1.1
 
 if ($?ICE_IOTYPE) then
 if ($ICE_IOTYPE =~ pio*) then
@@ -29,7 +29,7 @@ if ($ICE_IOTYPE =~ pio*) then
   if ($ICE_IOTYPE == "pio1") then
     module load parallelio/1.10.1
   else
-    module load parallelio/2.6.1
+    module load parallelio/2.6.2
   endif
 endif
 endif
@@ -61,7 +61,7 @@ setenv OMP_STACKSIZE 64M
 setenv ICE_MACHINE_MACHNAME derecho
 setenv ICE_MACHINE_MACHINFO "HPE Cray EX Milan Slingshot 11"
 setenv ICE_MACHINE_ENVNAME cray
-setenv ICE_MACHINE_ENVINFO "cce 15.0.1, cray-mpich 8.1.25, netcdf4.9.2, pnetcdf1.12.3, pio1.10.1, pio2.6.1"
+setenv ICE_MACHINE_ENVINFO "Cray clang/fortran cce 16.0.1, cray-mpich 8.1.27, netcdf4.9.2, pnetcdf1.12.3, pio1.10.1, pio2.6.2"
 setenv ICE_MACHINE_MAKE gmake
 setenv ICE_MACHINE_WKDIR /glade/derecho/scratch/$user/CICE_RUNS
 setenv ICE_MACHINE_INPUTDATA /glade/campaign/cesm/development/pcwg
diff --git a/configuration/scripts/machines/env.derecho_intel b/configuration/scripts/machines/env.derecho_intel
index 63626dc33..05c719838 100644
--- a/configuration/scripts/machines/env.derecho_intel
+++ b/configuration/scripts/machines/env.derecho_intel
@@ -10,16 +10,16 @@ if ("$inp" != "-nomodules") then
 source ${MODULESHOME}/init/csh
 
 module --force purge
-module load ncarenv/23.06
+module load ncarenv/23.09
 module load craype
-module load intel/2023.0.0
+module load intel/2023.2.1
 module load ncarcompilers
-module load cray-mpich/8.1.25
+module load cray-mpich/8.1.27
 module load netcdf/4.9.2
 #module load hdf5/1.12.2
 #module load netcdf-mpi/4.9.2
 
-module load cray-libsci/23.02.1.1
+module load cray-libsci/23.09.1.1
 
 if ($?ICE_IOTYPE) then
 if ($ICE_IOTYPE =~ pio*) then
@@ -29,7 +29,7 @@ if ($ICE_IOTYPE =~ pio*) then
   if ($ICE_IOTYPE == "pio1") then
     module load parallelio/1.10.1
   else
-    module load parallelio/2.6.1
+    module load parallelio/2.6.2
   endif
 endif
 endif
@@ -61,7 +61,7 @@ setenv OMP_STACKSIZE 64M
 setenv ICE_MACHINE_MACHNAME derecho
 setenv ICE_MACHINE_MACHINFO "HPE Cray EX Milan Slingshot 11"
 setenv ICE_MACHINE_ENVNAME intel
-setenv ICE_MACHINE_ENVINFO "ifort 2021.8.0 20221119, oneAPI DPC++/C++ 2023.0.0.20221201), cray-mpich 8.1.25, netcdf4.9.2, pnetcdf1.12.3, pio1.10.1, pio2.6.1"
+setenv ICE_MACHINE_ENVINFO "ifort 2021.10.0 20230609, oneAPI DPC++/C++ 2023.2.0.20230721, cray-mpich 8.1.27, netcdf4.9.2, pnetcdf1.12.3, pio1.10.1, pio2.6.2"
 setenv ICE_MACHINE_MAKE gmake
 setenv ICE_MACHINE_WKDIR /glade/derecho/scratch/$user/CICE_RUNS
 setenv ICE_MACHINE_INPUTDATA /glade/campaign/cesm/development/pcwg
diff --git a/configuration/scripts/machines/env.derecho_inteloneapi b/configuration/scripts/machines/env.derecho_inteloneapi
index 8f3911036..79715ba2a 100644
--- a/configuration/scripts/machines/env.derecho_inteloneapi
+++ b/configuration/scripts/machines/env.derecho_inteloneapi
@@ -10,16 +10,17 @@ if ("$inp" != "-nomodules") then
 source ${MODULESHOME}/init/csh
 
 module --force purge
-module load ncarenv/23.06
+module load ncarenv/23.09
 module load craype
-module load intel-oneapi/2023.0.0
-module load ncarcompilers
-module load cray-mpich/8.1.25
+module load intel-oneapi/2023.2.1
+#module load mkl/2023.3.0
+module load ncarcompilers/1.0.0
+module load cray-mpich/8.1.27
 module load netcdf/4.9.2
 #module load hdf5/1.12.2
 #module load netcdf-mpi/4.9.2
 
-module load cray-libsci/23.02.1.1
+module load cray-libsci/23.09.1.1
 
 if ($?ICE_IOTYPE) then
 if ($ICE_IOTYPE =~ pio*) then
@@ -29,7 +30,7 @@ if ($ICE_IOTYPE =~ pio*) then
   if ($ICE_IOTYPE == "pio1") then
     module load parallelio/1.10.1
   else
-    module load parallelio/2.6.1
+    module load parallelio/2.6.2
   endif
 endif
 endif
@@ -61,7 +62,7 @@ setenv OMP_STACKSIZE 64M
 setenv ICE_MACHINE_MACHNAME derecho
 setenv ICE_MACHINE_MACHINFO "HPE Cray EX Milan Slingshot 11"
 setenv ICE_MACHINE_ENVNAME inteloneapi
-setenv ICE_MACHINE_ENVINFO "ifx 2023.0.0 20221201, oneAPI DPC++/C++ 2023.0.0.20221201, cray-mpich 8.1.25, netcdf4.9.2, pnetcdf1.12.3, pio1.10.1, pio2.6.1"
+setenv ICE_MACHINE_ENVINFO "oneAPI DPC++/C++/ifx 2023.2.0 20230721, cray-mpich 8.1.27, netcdf4.9.2, pnetcdf1.12.3, pio1.10.1, pio2.6.2"
 setenv ICE_MACHINE_MAKE gmake
 setenv ICE_MACHINE_WKDIR /glade/derecho/scratch/$user/CICE_RUNS
 setenv ICE_MACHINE_INPUTDATA /glade/campaign/cesm/development/pcwg
diff --git a/configuration/scripts/machines/env.derecho_nvhpc b/configuration/scripts/machines/env.derecho_nvhpc
index 34342769c..99aa6430a 100644
--- a/configuration/scripts/machines/env.derecho_nvhpc
+++ b/configuration/scripts/machines/env.derecho_nvhpc
@@ -10,16 +10,16 @@ if ("$inp" != "-nomodules") then
 source ${MODULESHOME}/init/csh
 
 module --force purge
-module load ncarenv/23.06
+module load ncarenv/23.09
 module load craype
-module load nvhpc/23.5
+module load nvhpc/23.7
 module load ncarcompilers
-module load cray-mpich/8.1.25
+module load cray-mpich/8.1.27
 module load netcdf/4.9.2
 #module load hdf5/1.12.2
 #module load netcdf-mpi/4.9.2
 
-module load cray-libsci/23.02.1.1
+module load cray-libsci/23.09.1.1
 
 if ($?ICE_IOTYPE) then
 if ($ICE_IOTYPE =~ pio*) then
@@ -29,7 +29,7 @@ if ($ICE_IOTYPE =~ pio*) then
   if ($ICE_IOTYPE == "pio1") then
     module load parallelio/1.10.1
   else
-    module load parallelio/2.6.0
+    module load parallelio/2.6.2
   endif
 endif
 endif
@@ -61,7 +61,7 @@ setenv OMP_STACKSIZE 64M
 setenv ICE_MACHINE_MACHNAME derecho
 setenv ICE_MACHINE_MACHINFO "HPE Cray EX Milan Slingshot 11"
 setenv ICE_MACHINE_ENVNAME nvhpc
-setenv ICE_MACHINE_ENVINFO "nvc 23.5-0, cray-mpich 8.1.25, netcdf4.9.2, pnetcdf1.12.3, pio1.10.1, pio2.6.0"
+setenv ICE_MACHINE_ENVINFO "nvfortran 23.7-0, cray-mpich 8.1.25, netcdf4.9.2, pnetcdf1.12.3, pio1.10.1, pio2.6.0"
 setenv ICE_MACHINE_MAKE gmake
 setenv ICE_MACHINE_WKDIR /glade/derecho/scratch/$user/CICE_RUNS
 setenv ICE_MACHINE_INPUTDATA /glade/campaign/cesm/development/pcwg
diff --git a/configuration/scripts/options/set_env.gx1 b/configuration/scripts/options/set_env.gx1
new file mode 100644
index 000000000..479de3d8e
--- /dev/null
+++ b/configuration/scripts/options/set_env.gx1
@@ -0,0 +1 @@
+setenv ICE_MEMUSE  5
diff --git a/doc/source/user_guide/ug_testing.rst b/doc/source/user_guide/ug_testing.rst
index 6867214b5..4fea329fb 100644
--- a/doc/source/user_guide/ug_testing.rst
+++ b/doc/source/user_guide/ug_testing.rst
@@ -1107,11 +1107,13 @@ You can also setup a conda env with the same utitities
 
 To run the validation test, setup a baseline run with the original baseline model and then 
 a perturbation run based on recent model changes.  Use ``--set qc`` in both runs in addition
-to other settings needed.  Then use the QC script to compare history output,
+to other settings needed.  Then use the QC script to compare history output.  The QC script should
+be run from the ``configuration/scripts/tests/QC`` directory because other files from that
+directory are required for the script.
 
 .. code-block:: bash
 
-  cp configuration/scripts/tests/QC/cice.t-test.py .
+  cd configuration/scripts/tests/QC
   ./cice.t-test.py /path/to/baseline/history /path/to/test/history
 
 The script will produce output similar to: