diff --git a/.gitignore b/.gitignore
index 5278359..aa46e26 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,3 @@
 res
-Manifest.toml
+./Manifest.toml
 Enzyme-GPU-Tests
diff --git a/benchmarks/.gitignore b/benchmarks/.gitignore
new file mode 100644
index 0000000..3d5d678
--- /dev/null
+++ b/benchmarks/.gitignore
@@ -0,0 +1,2 @@
+.spack-env
+spack.lock
diff --git a/benchmarks/Manifest.toml b/benchmarks/Manifest.toml
new file mode 100644
index 0000000..722dea2
--- /dev/null
+++ b/benchmarks/Manifest.toml
@@ -0,0 +1,169 @@
+# This file is machine-generated - editing it directly is not advised
+
+julia_version = "1.7.0-rc1"
+manifest_format = "2.0"
+
+[[deps.ArgTools]]
+uuid = "0dad84c5-d112-42e6-8d28-ef12dabb789f"
+
+[[deps.Artifacts]]
+uuid = "56f22d72-fd6d-98f1-02f0-08ddc0907c33"
+
+[[deps.Base64]]
+uuid = "2a0f44e3-6c83-55bd-87e4-b1978d98bd5f"
+
+[[deps.CEnum]]
+git-tree-sha1 = "215a9aa4a1f23fbd05b92769fdd62559488d70e9"
+uuid = "fa961155-64e5-5f13-b03f-caf6b980ea82"
+version = "0.4.1"
+
+[[deps.Dates]]
+deps = ["Printf"]
+uuid = "ade2ca70-3891-5945-98fb-dc099432e06a"
+
+[[deps.Downloads]]
+deps = ["ArgTools", "LibCURL", "NetworkOptions"]
+uuid = "f43a241f-c20a-4ad4-852c-f6b1247861c6"
+
+[[deps.FluxRM]]
+deps = ["CEnum", "JSON3", "Libdl", "StructTypes"]
+git-tree-sha1 = "2890941804efd695679e00c993157d0c32be9c6c"
+repo-rev = "main"
+repo-url = "https://github.com/flux-framework/FluxRM.jl"
+uuid = "e7b9fac9-e441-4388-a71b-956020f2d1a2"
+version = "0.1.0"
+
+[[deps.InteractiveUtils]]
+deps = ["Markdown"]
+uuid = "b77e0a4c-d291-57a0-90e8-8db25a27a240"
+
+[[deps.JSON3]]
+deps = ["Dates", "Mmap", "Parsers", "StructTypes", "UUIDs"]
+git-tree-sha1 = "7d58534ffb62cd947950b3aa9b993e63307a6125"
+uuid = "0f8b85d8-7281-11e9-16c2-39a750bddbf1"
+version = "1.9.2"
+
+[[deps.LazyArtifacts]]
+deps = ["Artifacts", "Pkg"]
+uuid = "4af54fe1-eca0-43a8-85a7-787d91b784e3"
+
+[[deps.LibCURL]]
+deps = ["LibCURL_jll", "MozillaCACerts_jll"]
+uuid = "b27032c2-a3e7-50c8-80cd-2d36dbcbfd21"
+
+[[deps.LibCURL_jll]]
+deps = ["Artifacts", "LibSSH2_jll", "Libdl", "MbedTLS_jll", "Zlib_jll", "nghttp2_jll"]
+uuid = "deac9b47-8bc7-5906-a0fe-35ac56dc84c0"
+
+[[deps.LibGit2]]
+deps = ["Base64", "NetworkOptions", "Printf", "SHA"]
+uuid = "76f85450-5226-5b5a-8eaa-529ad045b433"
+
+[[deps.LibSSH2_jll]]
+deps = ["Artifacts", "Libdl", "MbedTLS_jll"]
+uuid = "29816b5a-b9ab-546f-933c-edad1886dfa8"
+
+[[deps.Libdl]]
+uuid = "8f399da3-3557-5675-b5ff-fb832c97cbdb"
+
+[[deps.Logging]]
+uuid = "56ddb016-857b-54e1-b83d-db4d58db5568"
+
+[[deps.Markdown]]
+deps = ["Base64"]
+uuid = "d6f4376e-aef5-505a-96c1-9c027394607a"
+
+[[deps.MbedTLS_jll]]
+deps = ["Artifacts", "Libdl"]
+uuid = "c8ffd9c3-330d-5841-b78e-0817d7145fa1"
+
+[[deps.Mmap]]
+uuid = "a63ad114-7e13-5084-954f-fe012c677804"
+
+[[deps.MozillaCACerts_jll]]
+uuid = "14a3606d-f60d-562e-9121-12d972cd8159"
+
+[[deps.NetworkOptions]]
+uuid = "ca575930-c2e3-43a9-ace4-1e988b2c1908"
+
+[[deps.PackageCompiler]]
+deps = ["Artifacts", "LazyArtifacts", "Libdl", "Pkg", "RelocatableFolders", "UUIDs"]
+git-tree-sha1 = "a965dd53ccaa69010d62851ab73d4e0c3d098314"
+uuid = "9b87118b-4619-50d2-8e1e-99f35a4d4d9d"
+version = "1.7.6"
+
+[[deps.Parsers]]
+deps = ["Dates"]
+git-tree-sha1 = "98f59ff3639b3d9485a03a72f3ab35bab9465720"
+uuid = "69de0a69-1ddd-5017-9359-2bf0b02dc9f0"
+version = "2.0.6"
+
+[[deps.Pkg]]
+deps = ["Artifacts", "Dates", "Downloads", "LibGit2", "Libdl", "Logging", "Markdown", "Printf", "REPL", "Random", "SHA", "Serialization", "TOML", "Tar", "UUIDs", "p7zip_jll"]
+uuid = "44cfe95a-1eb2-52ea-b672-e2afdf69b78f"
+
+[[deps.Printf]]
+deps = ["Unicode"]
+uuid = "de0858da-6303-5e67-8744-51eddeeeb8d7"
+
+[[deps.REPL]]
+deps = ["InteractiveUtils", "Markdown", "Sockets", "Unicode"]
+uuid = "3fa0cd96-eef1-5676-8a61-b3b8758bbffb"
+
+[[deps.Random]]
+deps = ["Serialization"]
+uuid = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
+
+[[deps.RelocatableFolders]]
+deps = ["SHA", "Scratch"]
+git-tree-sha1 = "df2be5142a2a3db2da37b21d87c9fa7973486bfd"
+uuid = "05181044-ff0b-4ac5-8273-598c1e38db00"
+version = "0.1.2"
+
+[[deps.SHA]]
+uuid = "ea8e919c-243c-51af-8825-aaa63cd721ce"
+
+[[deps.Scratch]]
+deps = ["Dates"]
+git-tree-sha1 = "0b4b7f1393cff97c33891da2a0bf69c6ed241fda"
+uuid = "6c6a2e73-6563-6170-7368-637461726353"
+version = "1.1.0"
+
+[[deps.Serialization]]
+uuid = "9e88b42a-f829-5b0c-bbe9-9e923198166b"
+
+[[deps.Sockets]]
+uuid = "6462fe0b-24de-5631-8697-dd941f90decc"
+
+[[deps.StructTypes]]
+deps = ["Dates", "UUIDs"]
+git-tree-sha1 = "d24a825a95a6d98c385001212dc9020d609f2d4f"
+uuid = "856f2bd8-1eba-4b0a-8007-ebc267875bd4"
+version = "1.8.1"
+
+[[deps.TOML]]
+deps = ["Dates"]
+uuid = "fa267f1f-6049-4f14-aa54-33bafae1ed76"
+
+[[deps.Tar]]
+deps = ["ArgTools", "SHA"]
+uuid = "a4e569a6-e804-4fa4-b0f3-eef7a1d5b13e"
+
+[[deps.UUIDs]]
+deps = ["Random", "SHA"]
+uuid = "cf7118a7-6976-5b1a-9a39-7adc72f591a4"
+
+[[deps.Unicode]]
+uuid = "4ec0a83e-493e-50e2-b9ac-8f72acf5a8f5"
+
+[[deps.Zlib_jll]]
+deps = ["Libdl"]
+uuid = "83775a58-1f1d-513f-b197-d71354ab007a"
+
+[[deps.nghttp2_jll]]
+deps = ["Artifacts", "Libdl"]
+uuid = "8e850ede-7688-5339-a07c-302acd2aaf8d"
+
+[[deps.p7zip_jll]]
+deps = ["Artifacts", "Libdl"]
+uuid = "3f19e933-33d8-53b3-aaab-bd5110c3b7a0"
diff --git a/benchmarks/Project.toml b/benchmarks/Project.toml
new file mode 100644
index 0000000..f1c8b5c
--- /dev/null
+++ b/benchmarks/Project.toml
@@ -0,0 +1,3 @@
+[deps]
+FluxRM = "e7b9fac9-e441-4388-a71b-956020f2d1a2"
+PackageCompiler = "9b87118b-4619-50d2-8e1e-99f35a4d4d9d"
diff --git a/benchmarks/README.md b/benchmarks/README.md
new file mode 100644
index 0000000..a9b6a2c
--- /dev/null
+++ b/benchmarks/README.md
@@ -0,0 +1,21 @@
+# Running the benchmakrs
+
+## Installation
+
+In `benchmarks/`:
+
+```
+spack env activate .
+spack concretize
+despacktivate
+spack env activate .
+julia --project. -e "import Pkg; Pkg.instantiate()"
+```
+
+
+## Launching
+```
+spack env activate .
+flux start
+julia --project=. run.jl
+```
diff --git a/benchmarks/run.jl b/benchmarks/run.jl
new file mode 100644
index 0000000..e99ae27
--- /dev/null
+++ b/benchmarks/run.jl
@@ -0,0 +1,72 @@
+using FluxRM
+
+function __get_treedict!(dict, path...)
+    next_dict = dict
+    for node in path
+        next_dict = get!(()-> Dict{String, Any}(), next_dict, node)
+    end
+    return next_dict
+end
+
+function __set_io_path(spec::FluxRM.JobSpec.Jobspec, iotype, name, path)
+    system = spec.attributes.system
+    if system.shell === nothing
+        system.shell = Dict{String, Any}()
+    end
+    io = __get_treedict!(system.shell, "options", iotype, name)
+
+    io["type"] = "file"
+    io["path"] = path
+end
+
+function juliaspec(args, dir; num_nodes=1, num_tasks_per_node=8, cores_per_task=1)
+    num_tasks = num_nodes*num_tasks_per_node
+    cmd = `$(Base.julia_cmd()) $(args)`
+    jobspec = FluxRM.JobSpec.from_command(cmd; num_nodes, num_tasks, cores_per_task)
+    system = jobspec.attributes.system
+    system.cwd = dir
+    system.environment = Dict(
+        "JULIA_PROJECT" => dir,
+        "JULIA_NUM_THREADS" => cores_per_task,
+        "JULIA_EXCLUSIVE" => 1
+    )
+    __set_io_path(jobspec, "output", "stderr", "flux-{{id}}.err")
+    __set_io_path(jobspec, "output", "stdout", "flux-{{id}}.out")
+    @assert FluxRM.JobSpec.validate(jobspec, 1)
+
+    # FluxRM.JSON3.pretty(FluxRM.JSON3.write(jobspec))
+
+    jobspec
+end
+
+# Notes
+# - Flux treats hyper-threads as a single core
+
+function nodes()
+    rpc = fetch(FluxRM.RPC(Flux(), "resource.status", nodeid=0))
+    R = first(rpc.R.execution.R_lite)
+
+    hosts = FluxRM.IDSet(R.rank) 
+    Int(length(hosts))
+end
+
+const N = nodes()
+const workdir =  realpath(joinpath(@__DIR__, "..", "examples"))
+
+@info "Instantiate" workdir
+cd(workdir) do
+    run(`$(Base.julia_cmd()) --project=. -e 'import Pkg; Pkg.instantiate()'`)
+    run(`$(Base.julia_cmd()) --project=. -e 'import Pkg; Pkg.build()'`)
+end
+
+@info "Launching Jobs in " workdir
+
+let flux = Flux()
+    for i in 0:floor(Int,log2(N))
+        n = 2^i
+        jobspec = juliaspec(`benchmark.jl -s 45 --mpi`, workdir, num_nodes=n)
+        sub = FluxRM.submit(flux, jobspec)
+        job = FluxRM.Job(sub)
+        @info "Launched" jobid = FluxRM.encode(job) n
+    end
+end
diff --git a/benchmarks/spack.yaml b/benchmarks/spack.yaml
new file mode 100644
index 0000000..7da5fb7
--- /dev/null
+++ b/benchmarks/spack.yaml
@@ -0,0 +1,13 @@
+# This is a Spack Environment file.
+#
+# It describes a set of packages to be installed, along with
+# configuration settings.
+spack:
+  # add package specs to the `specs` list
+  specs:
+  - flux-sched
+  - flux-core
+  - libzmq@4.3.2
+  - hwloc ~rocm ~pci
+  concretization: together
+  view: true