diff --git a/README.md b/README.md
index 7ec38ea..8807cfe 100644
--- a/README.md
+++ b/README.md
@@ -127,6 +127,47 @@ measurement_time	ipr_bench_version	host_id	host_fqdn	user	num_cpus	cpu_model	lau
 2024-11-27 11:42:49.511113	0.0.14	<unknown>	alambix50.ipr.univ-rennes.fr	graffy	2	intel_xeon_x5650	graffy.manual.alambix.job18886	12	a3bed1c3ccfbca572003020d3e3d3b1ff3934fad	ifort:2021.13.1	intelmkl:2024.2.1	arch4_quick	cmake	3.8646755	3.8377410000000003	0.2467767843388766	3.569571	4.220125	1
 ```
 
+## launch benchmark jobs on alambix cluster
+
+### run hibridon benchmark on alambix (production version where results are stored on `iprbenchs` database):
+
+```sh
+(iprbench.venv) graffy@alambix50:/opt/ipr/cluster/work.local/graffy/bug3958/iprbench.git$ results_dir="$GLOBAL_WORK_DIR/graffy/iprbenchs/test_results/clusterbench_submit/$(date --iso-=seconds)"; clusterbench-submit --cluster-id 'alambix' --arch-regexp ".*" --benchmark-id 'hibridon' --config '{"fortran_compiler": "ifort:<default>", "blas_library": "intelmkl:<default>", "test_id": "nh3h2_qma_long", "hibridon_version": "a3bed1c3ccfbca572003020d3e3d3b1ff3934fad", "cmake_path": "cmake", "num_cores": 1, "launcher": "graffy.manual"}' --results-dir "${results_dir}" --resultsdb-params '{ "type": "sqlserver-viassh-database", "db_server_fqdn": "iprbenchsdb.ipr.univ-rennes1.fr", "db_user": "iprbenchw", "db_name": "iprbenchs", "ssh_user": "iprbenchw" }' --target-system-type-id "fr.univ-rennes.ipr.cluster-node"
+```
+
+note: for these runs to succeed, graffy@alambix is expected have have the privilieges to write in `iprbenchs` database. This is ensured by allowing `graffy@alambix` to ssh to `iprbenchw@iprbenchsdb.ipr.univ-rennes1.fr` with the ssh key `perf-bencher` (which has been added to `iprbenchw@iprbenchsdb.ipr.univ-rennes1.fr:~iprbenchw/.ssh/authorized_keys` by maco), using the following setup:
+
+```sh
+raffy@alambix-frontal:~$ ls -la ./.ssh/
+total 92
+drwx------   2 graffy spm  4096 27 nov.  15:46 .
+drwxr-xr-x 171 graffy spm 12288  4 déc.  19:22 ..
+-rw-------   1 graffy spm   607 22 mai    2024 authorized_keys
+-rw-r-----   1 graffy spm   296 27 nov.  15:46 config
+-rw-------   1 graffy spm 16658 18 nov.  22:48 known_hosts
+...
+-rw-------   1 graffy spm   411 27 nov.  15:29 perf-bencher
+-rw-r--r--   1 graffy spm    98 27 nov.  15:29 perf-bencher.pub
+...
+```
+
+```sh
+graffy@alambix-frontal:~$ cat .ssh/config
+...
+Host iprbenchsdb.ipr.univ-rennes1.fr
+        hostname iprbenchsdb.ipr.univ-rennes1.fr
+        user test_iprbenchw
+        IdentityFile ~/.ssh/perf-bencher
+```
+
+### run hibridon benchmark on alambix (test version where results are stored on `test_iprbenchs` database):
+
+This example is the same as the previous one except:
+- use `test_iprbenchs` database instead of `iprbenchs`
+- use `test_iprbenchw` user instead of `iprbenchw`
+
+
+
 ## graph the results of benchmarks
 
 `showresults` is a command line tool that graphs the results after they've been downloaded from the results directory (for example `/opt/ipr/cluster/work.global/graffy/hibridon/benchmarks/starbench/hibridon/2024-10-10T12:11:44+02:00`) to the hardcoded (at the moment) path `/home/graffy/work/starbench/starbench.git/usecases/ipr/hibridon/results`