diff --git a/src/modules/wreck/Makefile.am b/src/modules/wreck/Makefile.am
index cbd7f2407e27..5fa3e7113168 100644
--- a/src/modules/wreck/Makefile.am
+++ b/src/modules/wreck/Makefile.am
@@ -81,7 +81,8 @@ dist_wreckscripts_SCRIPTS = \
 	lua.d/mvapich.lua \
 	lua.d/pmi-mapping.lua \
 	lua.d/intel_mpi.lua \
-	lua.d/openmpi.lua
+        lua.d/openmpi.lua \
+        lua.d/spectrum.lua
    
 # XXX: Hack below to force rebuild of unbuilt wrexecd dependencies
 #
diff --git a/src/modules/wreck/lua.d/spectrum.lua b/src/modules/wreck/lua.d/spectrum.lua
new file mode 100644
index 000000000000..6985a4a1e984
--- /dev/null
+++ b/src/modules/wreck/lua.d/spectrum.lua
@@ -0,0 +1,49 @@
+-- Set environment specific to spectrum_mpi (derived from openmpi)
+--
+
+if wreck:getopt ("mpi") ~= "spectrum" then return end
+
+local posix = require 'posix'
+
+function prepend_path (env_var, path)
+    local env = wreck.environ
+    if env[env_var] == nil then
+       suffix = ''
+    else
+       suffix = ':'..env[env_var]
+    end
+    env[env_var] = path..suffix
+end
+
+function rexecd_init ()
+    local env = wreck.environ
+    local f = wreck.flux
+    local rundir = f:getattr ('broker.rundir')
+
+    -- Avoid shared memory segment name collisions
+    -- when flux instance runs >1 broker per node.
+    env['OMPI_MCA_orte_tmpdir_base'] = rundir
+
+    -- Assumes the installation paths of Spectrum MPI on LLNL's Sierra
+    env['OMPI_MCA_osc'] = "pt2pt"
+    env['OMPI_MCA_pml'] = "yalla"
+    env['OMPI_MCA_btl'] = "self"
+    env['MPI_ROOT'] = "/opt/ibm/spectrum_mpi"
+    env['OPAL_LIBDIR'] = "/opt/ibm/spectrum_mpi/lib"
+    env['OMPI_MCA_coll_hcoll_enable'] = '0'
+
+    env['PMIX_SERVER_URI'] = nil
+    env['PMIX_SERVER_URI2'] = nil
+
+    -- Help find libcollectives.so
+    prepend_path ('LD_LIBRARY_PATH', '/opt/ibm/spectrum_mpi/lib/pami_port')
+    prepend_path ('LD_PRELOAD', '/opt/ibm/spectrum_mpi/lib/libpami_cudahook.so')
+end
+
+function rexecd_task_init ()
+    -- Approximately `ulimit -Ss 10240`
+    -- Used to silence IBM MCM warnings
+    posix.setrlimit ("stack", 10485760)
+end
+
+-- vi: ts=4 sw=4 expandtab