diff --git a/.github/workflows/tests_archdetect.yml b/.github/workflows/tests_archdetect.yml
index 618f6eb142..37338693c5 100644
--- a/.github/workflows/tests_archdetect.yml
+++ b/.github/workflows/tests_archdetect.yml
@@ -14,14 +14,15 @@ jobs:
           - x86_64/amd/zen2/Azure-CentOS7-7V12
           - x86_64/amd/zen3/Azure-CentOS7-7V73X
           - ppc64le/power9le/unknown-power9le
-          - aarch64/arm/neoverse-n1/Azure-Ubuntu20-Altra
-          - aarch64/arm/neoverse-n1/AWS-awslinux-graviton2
-          - aarch64/arm/neoverse-v1/AWS-awslinux-graviton3
+          - aarch64/neoverse_n1/Azure-Ubuntu20-Altra
+          - aarch64/neoverse_n1/AWS-awslinux-graviton2
+          - aarch64/neoverse_v1/AWS-awslinux-graviton3
       fail-fast: false
     steps:
     - name: checkout
       uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8 # v3.1.0
-
+    - name: Enable EESSI
+      uses: eessi/github-action-eessi@58b50fd2eead2162c2b9ac258d4fb60cc9f30503 # v2.0.13
     - name: test eessi_archdetect.sh
       run: |
           export EESSI_MACHINE_TYPE=${{matrix.proc_cpuinfo}}
@@ -34,3 +35,15 @@ jobs:
               echo "Test for ${{matrix.proc_cpuinfo}} FAILED: $CPU_ARCH" >&2
               exit 1
           fi
+          CPU_ARCHES=$(./init/eessi_archdetect.sh -a cpupath)
+          if [[ $CPU_ARCHES == "$( cat ./tests/archdetect/${{matrix.proc_cpuinfo}}.all.output )" ]]; then
+              echo "Test for ${{matrix.proc_cpuinfo}} PASSED: $CPU_ARCHES" >&2
+          else
+              echo "Test for ${{matrix.proc_cpuinfo}} FAILED: $CPU_ARCHES" >&2
+              exit 1
+          fi
+          # Check all those architectures actually exist
+          for dir in $(echo "$CPU_ARCHES" | tr ':' '\n'); do
+              # Search all EESSI versions as we may drop support at some point 
+              ls -d "$EESSI_PREFIX"/../*/software/linux/"$dir" 
+          done
diff --git a/init/arch_specs/eessi_arch_arm.spec b/init/arch_specs/eessi_arch_arm.spec
index 92f32a76d8..b5c9275043 100755
--- a/init/arch_specs/eessi_arch_arm.spec
+++ b/init/arch_specs/eessi_arch_arm.spec
@@ -1,6 +1,6 @@
 # ARM CPU architecture specifications
 # Software path in EESSI 	| Vendor ID 	| List of defining CPU features
-"aarch64/arm/neoverse-n1"	"ARM"		"asimd"		# Ampere Altra
-"aarch64/arm/neoverse-n1"	""		"asimd"		# AWS Graviton2
-"aarch64/arm/neoverse-v1"	"ARM"		"asimd svei8mm" 
-"aarch64/arm/neoverse-v1"	""		"asimd svei8mm"	# AWS Graviton3
+"aarch64/neoverse_n1"	"ARM"		"asimd"		# Ampere Altra
+"aarch64/neoverse_n1"	""		"asimd"		# AWS Graviton2
+"aarch64/neoverse_v1"	"ARM"		"asimd svei8mm"
+"aarch64/neoverse_v1"	""		"asimd svei8mm"	# AWS Graviton3
diff --git a/init/eessi_archdetect.sh b/init/eessi_archdetect.sh
index d2b6dacf04..58dd99eb6b 100755
--- a/init/eessi_archdetect.sh
+++ b/init/eessi_archdetect.sh
@@ -1,8 +1,10 @@
 #!/usr/bin/env bash
-VERSION="1.0.0"
+VERSION="1.1.0"
 
 # Logging
 LOG_LEVEL="INFO"
+# Default result type is a best match
+CPUPATH_RESULT="best"
 
 timestamp () {
     date "+%Y-%m-%d %H:%M:%S"
@@ -105,7 +107,8 @@ cpupath(){
     log "DEBUG" "cpupath: CPU flags of host system: '$cpu_flags'"
   
     # Default to generic CPU
-    local best_arch_match="generic"
+    local best_arch_match="$machine_type/generic"
+    local all_arch_matches=$best_arch_match
   
     # Iterate over the supported CPU specifications to find the best match for host CPU
     # Order of the specifications matters, the last one to match will be selected
@@ -114,22 +117,29 @@ cpupath(){
         if [ "${cpu_vendor}x" == "${arch_spec[1]}x" ]; then
             # each flag in this CPU specification must be found in the list of flags of the host
             check_allinfirst "${cpu_flags[*]}" ${arch_spec[2]} && best_arch_match=${arch_spec[0]} && \
-                log "DEBUG" "cpupath: host CPU best match updated to $best_arch_match"
+                all_arch_matches="$best_arch_match:$all_arch_matches" && \
+                log "DEBUG" "cpupath: host CPU best match updated to $best_arch_match" 
         fi
     done
   
-    log "INFO" "cpupath: best match for host CPU: $best_arch_match"
-    echo "$best_arch_match"
+    if [ "allx" == "${CPUPATH_RESULT}x" ]; then
+        log "INFO" "cpupath: all matches for host CPU: $all_arch_matches"
+        echo "$all_arch_matches"
+    else
+        log "INFO" "cpupath: best match for host CPU: $best_arch_match"
+        echo "$best_arch_match"
+    fi
 }
 
 # Parse command line arguments
-USAGE="Usage: eessi_archdetect.sh [-h][-d] <action>"
+USAGE="Usage: eessi_archdetect.sh [-h][-d][-a] <action>"
 
-while getopts 'hdv' OPTION; do
+while getopts 'hdva' OPTION; do
     case "$OPTION" in
         h) echo "$USAGE"; exit 0;;
         d) LOG_LEVEL="DEBUG";;
         v) echo "eessi_archdetect.sh v$VERSION"; exit 0;;
+        a) CPUPATH_RESULT="all";;
         ?) echo "$USAGE"; exit 1;;
     esac
 done
@@ -139,5 +149,5 @@ ARGUMENT=${1:-none}
 
 case "$ARGUMENT" in
     "cpupath") cpupath; exit;;
-    *) echo "$USAGE"; log "ERROR" "Missing <action> argument";;
+    *) echo "$USAGE"; log "ERROR" "Missing <action> argument (possible actions: 'cpupath')";;
 esac
diff --git a/tests/archdetect/aarch64/arm/neoverse-n1/AWS-awslinux-graviton2.output b/tests/archdetect/aarch64/arm/neoverse-n1/AWS-awslinux-graviton2.output
deleted file mode 100644
index b4dc5e9f1b..0000000000
--- a/tests/archdetect/aarch64/arm/neoverse-n1/AWS-awslinux-graviton2.output
+++ /dev/null
@@ -1 +0,0 @@
-aarch64/arm/neoverse-n1
diff --git a/tests/archdetect/aarch64/arm/neoverse-n1/Azure-Ubuntu20-Altra.output b/tests/archdetect/aarch64/arm/neoverse-n1/Azure-Ubuntu20-Altra.output
deleted file mode 100644
index b4dc5e9f1b..0000000000
--- a/tests/archdetect/aarch64/arm/neoverse-n1/Azure-Ubuntu20-Altra.output
+++ /dev/null
@@ -1 +0,0 @@
-aarch64/arm/neoverse-n1
diff --git a/tests/archdetect/aarch64/arm/neoverse-v1/AWS-awslinux-graviton3.output b/tests/archdetect/aarch64/arm/neoverse-v1/AWS-awslinux-graviton3.output
deleted file mode 100644
index 20db96d01f..0000000000
--- a/tests/archdetect/aarch64/arm/neoverse-v1/AWS-awslinux-graviton3.output
+++ /dev/null
@@ -1 +0,0 @@
-aarch64/arm/neoverse-v1
diff --git a/tests/archdetect/aarch64/neoverse_n1/AWS-awslinux-graviton2.all.output b/tests/archdetect/aarch64/neoverse_n1/AWS-awslinux-graviton2.all.output
new file mode 100644
index 0000000000..340aaa5d02
--- /dev/null
+++ b/tests/archdetect/aarch64/neoverse_n1/AWS-awslinux-graviton2.all.output
@@ -0,0 +1 @@
+aarch64/neoverse_n1:aarch64/generic
diff --git a/tests/archdetect/aarch64/arm/neoverse-n1/AWS-awslinux-graviton2.cpuinfo b/tests/archdetect/aarch64/neoverse_n1/AWS-awslinux-graviton2.cpuinfo
similarity index 100%
rename from tests/archdetect/aarch64/arm/neoverse-n1/AWS-awslinux-graviton2.cpuinfo
rename to tests/archdetect/aarch64/neoverse_n1/AWS-awslinux-graviton2.cpuinfo
diff --git a/tests/archdetect/aarch64/neoverse_n1/AWS-awslinux-graviton2.output b/tests/archdetect/aarch64/neoverse_n1/AWS-awslinux-graviton2.output
new file mode 100644
index 0000000000..a9bd49c75c
--- /dev/null
+++ b/tests/archdetect/aarch64/neoverse_n1/AWS-awslinux-graviton2.output
@@ -0,0 +1 @@
+aarch64/neoverse_n1
diff --git a/tests/archdetect/aarch64/neoverse_n1/Azure-Ubuntu20-Altra.all.output b/tests/archdetect/aarch64/neoverse_n1/Azure-Ubuntu20-Altra.all.output
new file mode 100644
index 0000000000..340aaa5d02
--- /dev/null
+++ b/tests/archdetect/aarch64/neoverse_n1/Azure-Ubuntu20-Altra.all.output
@@ -0,0 +1 @@
+aarch64/neoverse_n1:aarch64/generic
diff --git a/tests/archdetect/aarch64/arm/neoverse-n1/Azure-Ubuntu20-Altra.cpuinfo b/tests/archdetect/aarch64/neoverse_n1/Azure-Ubuntu20-Altra.cpuinfo
similarity index 100%
rename from tests/archdetect/aarch64/arm/neoverse-n1/Azure-Ubuntu20-Altra.cpuinfo
rename to tests/archdetect/aarch64/neoverse_n1/Azure-Ubuntu20-Altra.cpuinfo
diff --git a/tests/archdetect/aarch64/neoverse_n1/Azure-Ubuntu20-Altra.output b/tests/archdetect/aarch64/neoverse_n1/Azure-Ubuntu20-Altra.output
new file mode 100644
index 0000000000..a9bd49c75c
--- /dev/null
+++ b/tests/archdetect/aarch64/neoverse_n1/Azure-Ubuntu20-Altra.output
@@ -0,0 +1 @@
+aarch64/neoverse_n1
diff --git a/tests/archdetect/aarch64/neoverse_v1/AWS-awslinux-graviton3.all.output b/tests/archdetect/aarch64/neoverse_v1/AWS-awslinux-graviton3.all.output
new file mode 100644
index 0000000000..920d5f9996
--- /dev/null
+++ b/tests/archdetect/aarch64/neoverse_v1/AWS-awslinux-graviton3.all.output
@@ -0,0 +1 @@
+aarch64/neoverse_v1:aarch64/neoverse_n1:aarch64/generic
diff --git a/tests/archdetect/aarch64/arm/neoverse-v1/AWS-awslinux-graviton3.cpuinfo b/tests/archdetect/aarch64/neoverse_v1/AWS-awslinux-graviton3.cpuinfo
similarity index 100%
rename from tests/archdetect/aarch64/arm/neoverse-v1/AWS-awslinux-graviton3.cpuinfo
rename to tests/archdetect/aarch64/neoverse_v1/AWS-awslinux-graviton3.cpuinfo
diff --git a/tests/archdetect/aarch64/neoverse_v1/AWS-awslinux-graviton3.output b/tests/archdetect/aarch64/neoverse_v1/AWS-awslinux-graviton3.output
new file mode 100644
index 0000000000..a8e072a9c6
--- /dev/null
+++ b/tests/archdetect/aarch64/neoverse_v1/AWS-awslinux-graviton3.output
@@ -0,0 +1 @@
+aarch64/neoverse_v1
diff --git a/tests/archdetect/ppc64le/power9le/unknown-power9le.all.output b/tests/archdetect/ppc64le/power9le/unknown-power9le.all.output
new file mode 100644
index 0000000000..7ecf79d0a7
--- /dev/null
+++ b/tests/archdetect/ppc64le/power9le/unknown-power9le.all.output
@@ -0,0 +1 @@
+ppc64le/power9le:ppc64le/generic
\ No newline at end of file
diff --git a/tests/archdetect/x86_64/amd/zen2/Azure-CentOS7-7V12.all.output b/tests/archdetect/x86_64/amd/zen2/Azure-CentOS7-7V12.all.output
new file mode 100644
index 0000000000..180de26f0e
--- /dev/null
+++ b/tests/archdetect/x86_64/amd/zen2/Azure-CentOS7-7V12.all.output
@@ -0,0 +1 @@
+x86_64/amd/zen2:x86_64/generic
\ No newline at end of file
diff --git a/tests/archdetect/x86_64/amd/zen3/Azure-CentOS7-7V73X.all.output b/tests/archdetect/x86_64/amd/zen3/Azure-CentOS7-7V73X.all.output
new file mode 100644
index 0000000000..798a0aa565
--- /dev/null
+++ b/tests/archdetect/x86_64/amd/zen3/Azure-CentOS7-7V73X.all.output
@@ -0,0 +1 @@
+x86_64/amd/zen3:x86_64/amd/zen2:x86_64/generic
\ No newline at end of file
diff --git a/tests/archdetect/x86_64/intel/haswell/archspec-linux-E5-2680-v3.all.output b/tests/archdetect/x86_64/intel/haswell/archspec-linux-E5-2680-v3.all.output
new file mode 100644
index 0000000000..a047dd42cc
--- /dev/null
+++ b/tests/archdetect/x86_64/intel/haswell/archspec-linux-E5-2680-v3.all.output
@@ -0,0 +1 @@
+x86_64/intel/haswell:x86_64/generic
\ No newline at end of file
diff --git a/tests/archdetect/x86_64/intel/skylake_avx512/archspec-linux-6132.all.output b/tests/archdetect/x86_64/intel/skylake_avx512/archspec-linux-6132.all.output
new file mode 100644
index 0000000000..c9fa524ea6
--- /dev/null
+++ b/tests/archdetect/x86_64/intel/skylake_avx512/archspec-linux-6132.all.output
@@ -0,0 +1 @@
+x86_64/intel/skylake_avx512:x86_64/intel/haswell:x86_64/generic
\ No newline at end of file