diff --git a/config/queue.csv b/config/queue.csv
index 30d8c2d..1e7573e 100644
--- a/config/queue.csv
+++ b/config/queue.csv
@@ -1,5 +1,5 @@
 queue,submit_cmd,template
-SLURM_RIKYU,sbatch,"-p ${queue_group} -t ${elapse} -N ${nodes} --ntasks-per-node=${numproc_node} --cpus-per-task=${nthreads} --gpus-per-node=${numproc_node}"
+SLURM_RIKYU,sbatch,"-p ${queue_group} --account=${account} -t ${elapse} -N ${nodes} --ntasks-per-node=${numproc_node} --cpus-per-task=${nthreads} --gpus=${proc}"
 FJ,pjsub,"-L rscunit=rscunit_ft01,rscgrp=${queue_group},elapse=${elapse},node=${nodes} --mpi max-proc-per-node=${numproc_node} -x PJM_LLIO_GFSCACHE=/vol0002:/vol0003:/vol0004:/vol0005"
 PJM_GENKAI,pjsub,"-L rscgrp=${queue_group},elapse=${elapse},node=${nodes} --mpi proc=${proc}"
 SLURM_RC,sbatch,"-p ${queue_group} -t ${elapse} -N ${nodes} --ntasks-per-node=${numproc_node} --cpus-per-task=${nthreads}"
diff --git a/config/system.csv b/config/system.csv
index 9d2f860..e602904 100644
--- a/config/system.csv
+++ b/config/system.csv
@@ -1,9 +1,9 @@
-system,mode,tag_build,tag_run,queue,queue_group
-RIKYU,cross,ai4ss_login,ai4ss_jacamar,SLURM_RIKYU,1n1gpu
+system,mode,tag_build,tag_run,queue,queue_group,account
+RIKYU,cross,ai4ss_login,ai4ss_jacamar,SLURM_RIKYU,gpu,rkp00012
 Fugaku,cross,fugaku_login1,fugaku_jacamar,FJ,small
 FugakuCN,native,,fugaku_jacamar,FJ,small
 RC_GH200,native,,cloud_jacamar,SLURM_RC,qc-gh200
-RC_DGXSP,native,,cloud_jacamar,SLURM_RC,ng-dgx-3h
+RC_DGXSP,native,,cloud_jacamar,SLURM_RC,ng-dgx-m1
 RC_GENOA,native,,cloud_jacamar,SLURM_RC,genoa
 RC_FX700,native,,cloud_jacamar,SLURM_RC,fx700
 MiyabiG,cross,miyabi_g_login,miyabi_g_jacamar,PBS_Miyabi,debug-g
diff --git a/docs/cx/BENCHKIT_SPEC.md b/docs/cx/BENCHKIT_SPEC.md
index e9b8dde..c62e56c 100644
--- a/docs/cx/BENCHKIT_SPEC.md
+++ b/docs/cx/BENCHKIT_SPEC.md
@@ -251,7 +251,7 @@ BenchKit の system / queue 定義層である。
 - `queue.csv` に scheduler template を持つ
 - app 側の `list.csv` から system 固有事情を切り離す
 
-`system.csv` は system 名、mode、runner tag、queue、queue_group などの正本である。
+`system.csv` は system 名、mode、runner tag、queue、queue_group、scheduler account などの正本である。
 
 This is the system and queue definition layer.
 
@@ -261,7 +261,8 @@ Main roles:
 - `queue.csv` holds scheduler templates
 - system-specific concerns are separated from app-side `list.csv`
 
-`system.csv` is the source of truth for items such as system name, mode, runner tag, queue, and queue_group.
+`system.csv` is the source of truth for items such as system name, mode,
+runner tag, queue, queue_group, and scheduler account.
 
 ### 6.4 ポータル層 / Portal Layer
 
diff --git a/docs/guides/add-site.md b/docs/guides/add-site.md
index 943f409..96baec5 100644
--- a/docs/guides/add-site.md
+++ b/docs/guides/add-site.md
@@ -547,12 +547,12 @@ command_delay = "30s"
 ### `config/system.csv` にシステムを追加
 
 ```csv
-system,mode,tag_build,tag_run,queue,queue_group
+system,mode,tag_build,tag_run,queue,queue_group,account
 # 既存エントリ...
 # cross モード（ビルドと実行が別ノード）
-NewSystem,cross,newsystem_login,newsystem_jacamar,PBS_NewSystem,default
+NewSystem,cross,newsystem_login,newsystem_jacamar,PBS_NewSystem,default,
 # native モード（同一ノードでビルドと実行）
-NewSystemLN,native,,newsystem_login,none,default
+NewSystemLN,native,,newsystem_login,none,default,
 ```
 
 - `system`: システム名（アプリの `list.csv` から参照される）
@@ -561,6 +561,7 @@ NewSystemLN,native,,newsystem_login,none,default
 - `tag_run`: 実行用GitLab Runnerタグ（`native`の場合はbuild_runジョブ用）
 - `queue`: `config/queue.csv` のキュー名（ログインノードは `none`）
 - `queue_group`: キューグループ名
+- `account`: scheduler account/project。不要な拠点では空欄
 
 ### `config/queue.csv` にキューシステムを追加（必要な場合）
 
@@ -571,7 +572,7 @@ queue,submit_cmd,template
 PBS_NewSystem,qsub,"-q ${queue_group} -l select=${nodes} -l walltime=${elapse} -W group_list=your_group"
 ```
 
-テンプレート内で使える変数：`${queue_group}`, `${nodes}`, `${numproc_node}`, `${nthreads}`, `${elapse}`, `${proc}`（`nodes * numproc_node`）, `${cpu_per_node}`, `${gpu_per_node}`, `${cpu_sockets}`（`nodes * cpu_per_node`）, `${gpu_cards}`（`nodes * gpu_per_node`）
+テンプレート内で使える変数：`${queue_group}`, `${account}`, `${nodes}`, `${numproc_node}`, `${nthreads}`, `${elapse}`, `${proc}`（`nodes * numproc_node`）, `${cpu_per_node}`, `${gpu_per_node}`, `${cpu_sockets}`（`nodes * cpu_per_node`）, `${gpu_cards}`（`nodes * gpu_per_node`）
 
 `${cpu_per_node}` と `${gpu_per_node}` は `config/system_info.csv` から取得します。CPU socket 数や GPU card 数を scheduler に明示するサイトでは、`system_info.csv` の値も投入条件に使われます。
 
diff --git a/programs/salmon/build.sh b/programs/salmon/build.sh
index 793cf0a..8f529d8 100644
--- a/programs/salmon/build.sh
+++ b/programs/salmon/build.sh
@@ -167,6 +167,25 @@ case "${system}" in
   #     -DUSE_FJMPI=OFF
   #   )
   #   ;;
+  RIKYU)
+    module purge
+    module load nvhpc/26.3
+    cmake_args=(
+      "${common_cmake_args[@]}"
+      -DCMAKE_Fortran_COMPILER=mpif90
+      -DCMAKE_C_COMPILER=mpicc
+      -DOPENMP_FLAGS=-Mnoopenmp
+      -DUSE_OPENACC=ON
+      -DUSE_CUDA=ON
+      -DUSE_MPI_DEFAULT=ON
+      -DCMAKE_SYSTEM_PROCESSOR=openacc
+      -DCMAKE_Fortran_FLAGS="-O3 -Wall -fstrict-aliasing -acc=strict -gpu=cc100,managed,ptxinfo -cudalib=cublas -cuda -Minfo=accel -DUSE_OPENACC -DUSE_CUDA"
+      -DCMAKE_C_FLAGS="-O3 -Wall -alias=ansi -acc=strict -gpu=cc100,managed,ptxinfo -cudalib=cublas -cuda -Minfo=accel -DUSE_OPENACC -DUSE_CUDA"
+      -DCMAKE_CUDA_ARCHITECTURES=100
+      -DCMAKE_CUDA_FLAGS=-arch=sm_100
+      -DFORTRAN_COMPILER_HAS_MPI_VERSION3=OFF
+    )
+    ;;
   *)
     echo "Unknown system: ${system}" >&2
     exit 1
diff --git a/programs/salmon/list.csv b/programs/salmon/list.csv
index 386804d..ed4e159 100644
--- a/programs/salmon/list.csv
+++ b/programs/salmon/list.csv
@@ -4,3 +4,7 @@ RC_GH200,yes,1,1,1,0:10:00
 RC_DGXSP,yes,1,1,1,1:00:00
 RC_GENOA,yes,1,1,48,2:00:00
 RC_FX700,no,1,1,48,0:30:00
+RIKYU,yes,1,4,1,0:30:00
+RIKYU,yes,2,4,1,0:30:00
+RIKYU,yes,3,4,1,0:30:00
+RIKYU,yes,4,4,1,0:30:00
diff --git a/programs/salmon/run.sh b/programs/salmon/run.sh
index 1689c38..b482be0 100644
--- a/programs/salmon/run.sh
+++ b/programs/salmon/run.sh
@@ -13,6 +13,7 @@ RESULTS_DIR="${PWD}/results"
 WORK_DIR="${PWD}/salmon_run"
 INPUT_ARCHIVE_DEFAULT="/vol0003/rccs-sdt/data/a01010/benchmark_data/SALMON.tar.gz"
 INPUT_ARCHIVE_CLOUD="/lvs0/dne1/rccs-nghpcadu/CX_input/SALMON/SALMON.tar.gz"
+INPUT_ARCHIVE_RIKYU="/data1/rkp00012/CX_input/SALMON/SALMON.tar.gz"
 AOCL_ROOT_DEFAULT="/lvs0/rccs-nghpcadu/nakamura/aocl/install"
 
 mkdir -p "${RESULTS_DIR}"
@@ -29,6 +30,11 @@ case "${system}" in
     exec_gs=(-stdin Si-1-1-1.nml ./salmon)
     exec_rt=(-stdin Si-1-1-1-tddft.nml ./salmon)
     ;;
+  RIKYU)
+    input_archive="${BK_SALMON_INPUT_ARCHIVE:-${INPUT_ARCHIVE_RIKYU}}"
+    exec_gs=(./salmon)
+    exec_rt=(./salmon)
+    ;;
   RC_GH200|RC_DGXSP|RC_GENOA)
     input_archive="${INPUT_ARCHIVE_CLOUD}"
     exec_gs=(./salmon)
@@ -47,7 +53,7 @@ fi
 
 uses_stdin_input() {
   case "$1" in
-    RC_GH200|RC_DGXSP|RC_GENOA)
+    RIKYU|RC_GH200|RC_DGXSP|RC_GENOA)
       return 0
       ;;
     *)
@@ -108,6 +114,35 @@ case "${system}" in
     fi
     export OMP_NUM_THREADS="${nthreads}"
     ;;
+  RIKYU)
+    module purge
+    module load nvhpc/26.3
+    export OMP_NUM_THREADS="${nthreads}"
+    for nml in Si-1-1-1.nml Si-1-1-1-tddft.nml; do
+      awk -v nproc_ob="${n_ranks}" '
+        /^&parallel$/ { print; print "  nproc_ob = " nproc_ob; print "  nproc_k = 1"; print "  nproc_rgrid = 1, 1, 1"; in_parallel=1; next }
+        in_parallel && /^\// { in_parallel=0; print; next }
+        in_parallel { next }
+        { print }
+      ' "$nml" > "$nml.tmp" && mv "$nml.tmp" "$nml"
+    done
+    if [[ "${n_ranks}" -gt 1 ]]; then
+      cat > wrapper.sh <<'WRAPPER'
+#!/bin/bash
+NCUDA_GPUS=${NCUDA_GPUS:-$(nvidia-smi -L | wc -l)}
+if [ "$OMPI_COMM_WORLD_LOCAL_SIZE" -gt "$NCUDA_GPUS" ]; then
+  if [ "$OMPI_COMM_WORLD_LOCAL_RANK" -eq 0 ]; then
+    nvidia-cuda-mps-control -d
+  fi
+  sleep 10
+fi
+export CUDA_VISIBLE_DEVICES=$((${OMPI_COMM_WORLD_LOCAL_RANK} % ${NCUDA_GPUS}))
+exec "$@"
+WRAPPER
+      chmod +x wrapper.sh
+      export UCX_IB_GPU_DIRECT_RDMA=no
+    fi
+    ;;
   # RC_FX700)
   #   FX700 currently fails during GS initialization even with the Fujitsu
   #   topology guard patch applied. Keep this route disabled until verified.
@@ -122,6 +157,13 @@ run_salmon() {
   local logfile="$1"
   shift
   case "${system}" in
+    RIKYU)
+      if [[ "${n_ranks}" -gt 1 ]]; then
+        mpirun -n "${n_ranks}" ./wrapper.sh "$@" > "${logfile}" 2>&1
+      else
+        mpirun -n "${n_ranks}" "$@" > "${logfile}" 2>&1
+      fi
+      ;;
     RC_GENOA)
       mpirun -n "${n_ranks}" --bind-to core --map-by "ppr:${numproc_node}:node:PE=${nthreads}" "$@" > "${logfile}" 2>&1
       ;;
diff --git a/scripts/job_functions.sh b/scripts/job_functions.sh
index 2aeffc6..fe91fec 100644
--- a/scripts/job_functions.sh
+++ b/scripts/job_functions.sh
@@ -64,6 +64,14 @@ get_system_queue_group() {
     return 0
 }
 
+# System_CSVからscheduler accountを取得する
+# Account-less systems return an empty string.
+get_system_account() {
+    local system="$1"
+    awk -F, -v s="$system" '$1==s {print $7}' "$SYSTEM_FILE"
+    return 0
+}
+
 # Queue templates can request aggregate CPU sockets or GPU cards. Pull the
 # per-node values from system_info.csv instead of duplicating them in queue.csv.
 get_system_cpu_per_node() {
diff --git a/scripts/matrix_generate.sh b/scripts/matrix_generate.sh
index 25d69e3..10383e5 100644
--- a/scripts/matrix_generate.sh
+++ b/scripts/matrix_generate.sh
@@ -69,6 +69,7 @@ for listfile in programs/*/list.csv; do
 
     mode=$(get_system_mode "$system")
     queue_group=$(get_system_queue_group "$system")
+    account=$(get_system_account "$system")
 
     # Skip if mode or queue_group is empty (system not found in System_CSV)
     if [[ -z "$mode" || -z "$queue_group" ]]; then
@@ -88,7 +89,7 @@ for listfile in programs/*/list.csv; do
     [[ "$gpu_per_node" =~ ^[0-9]+$ ]] || gpu_per_node=0
     cpu_sockets=$((nodes * cpu_per_node))
     gpu_cards=$((nodes * gpu_per_node))
-	export elapse nodes queue_group numproc_node nthreads proc cpu_per_node gpu_per_node cpu_sockets gpu_cards
+	export elapse nodes queue_group account numproc_node nthreads proc cpu_per_node gpu_per_node cpu_sockets gpu_cards
 
 	read -r submit_cmd template <<< "$(get_queue_template "$system")"
     if [[ -z "$submit_cmd" || -z "$template" ]]; then
diff --git a/scripts/test_submit.sh b/scripts/test_submit.sh
index c8835e5..577e65c 100644
--- a/scripts/test_submit.sh
+++ b/scripts/test_submit.sh
@@ -85,13 +85,14 @@ fi
 # --- System_CSV から mode/queue_group を取得 ---
 mode=$(get_system_mode "$system")
 queue_group=$(get_system_queue_group "$system")
+account=$(get_system_account "$system")
 
 # --- 選択された設定を表示 ---
 echo "Selected configuration from $list_file (line $list_csv_line_num):"
 echo "  $line"
 echo ""
 echo "Parsed values:"
-echo "  system=$system, enable=$enable, mode=$mode (from system.csv), queue_group=$queue_group (from system.csv)"
+echo "  system=$system, enable=$enable, mode=$mode (from system.csv), queue_group=$queue_group (from system.csv), account=${account:-<default>}"
 echo "  nodes=$nodes, numproc_node=$numproc_node, nthreads=$nthreads, elapse=$elapse"
 
 # --- 投入用スクリプト作成 ---
@@ -221,9 +222,14 @@ case "$system" in
          -l elapstim_req=${elapse} -v OMP_NUM_THREADS=${nthreads} script.sh
     ;;
   RIKYU)
-    echo sbatch -p $queue_group -N $nodes -t $elapse --ntasks-per-node=${numproc_node} --cpus-per-task=$nthreads --gpus-per-node=${numproc_node} \
+    if [[ -z "$account" ]]; then
+      echo "Error: RIKYU requires an account in config/system.csv" >&2
+      exit 1
+    fi
+    proc=$((nodes * numproc_node))
+    echo sbatch -p $queue_group --account=$account -N $nodes -t $elapse --ntasks-per-node=${numproc_node} --cpus-per-task=$nthreads --gpus=$proc \
 	 --wrap="bash programs/$code/run.sh $system $nodes $numproc_node $nthreads"
-    sbatch -p $queue_group -N $nodes -t $elapse --ntasks-per-node=${numproc_node} --cpus-per-task=$nthreads --gpus-per-node=${numproc_node} \
+    sbatch -p $queue_group --account=$account -N $nodes -t $elapse --ntasks-per-node=${numproc_node} --cpus-per-task=$nthreads --gpus=$proc \
 	   --wrap="bash programs/${code}/run.sh $system $nodes $numproc_node $nthreads"
     ;;
   RC_GH200|RC_DGXSP|RC_GENOA|RC_FX700)