This is a short description how to run tests for pmix standalone library. To compile test the user should run make in the test subdirectory. To start testing, the user should run either pmix_test or pmix_test_lite executable. These applications are using two different versions of server functionality and fork client process which implementation is located in the pmix_client.c file. There are several command line options (available to see by -h argument). The main options are the following: --job-fence - run fence operation between processes from the same namespace. It has some additional parameters: -c - this fence should include data exchange (collective modex). Direct modex (no data exchange) is done by default. -nb - fence should be non-blocking (blocking by default). --fence "[ | ns0:ranks;ns1:ranks...][...]" - run multiple fences (each fence in square brackets) with different configurations in parsable format. Example: --fence "[db | 1:1,2 ; 2:3-6][1: ]" means that need to test two fences. The first one is blocking (b) and with data exchange (d) including ranks 1,2 from namespace 1 and ranks 3-6 from namespace 2. The second fence is non-blocking without data exchange including all processes from namespace 1. The assumption is that ranks should be set in increasing order (no same ranks in the different namespaces). It also has additional parameters: --noise "[ns0:ranks;ns1:ranks...]" - imitate system noise on certain ranks. It has similar to --fence format [0:0;1:1-3] to specify ranks which should sleep several seconds before doing fence test. --use-same-keys - put the same keys in the interim between multiple fences. --ns-dist "n1:n2:n3" register n namespaces (3 in this example) each with ni ranks (n1, n2 or n3). For example, --ns-dist 1:2:8 says server to register 3 namespaces: 1 proc in the 1st ns, 2 procs in the 2d ns, 8 procs in the 3d. --test-publish - test publish/lookup/unpublish api. --test-spawn - test spawn api. --test-connect - test connect/disconnect api. --test-resolve-peers - test resolve_peers api. File cmd_examples contains some command lines to test the main functionality.