diff --git a/pipes/WDL/tasks/tasks_assembly.wdl b/pipes/WDL/tasks/tasks_assembly.wdl
index aceb0665b..5845739e7 100644
--- a/pipes/WDL/tasks/tasks_assembly.wdl
+++ b/pipes/WDL/tasks/tasks_assembly.wdl
@@ -517,7 +517,7 @@ task align_reads {
     reports.py fastqc ~{sample_name}.mapped.bam ~{sample_name}.mapped_fastqc.html --out_zip ~{sample_name}.mapped_fastqc.zip
 
     cat /proc/uptime | cut -f 1 -d ' ' > UPTIME_SEC
-    { cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes || echo 0; } > MEM_BYTES
+    { if [ -f /sys/fs/cgroup/memory.peak ]; then cat /sys/fs/cgroup/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.peak ]; then cat /sys/fs/cgroup/memory/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.max_usage_in_bytes ]; then cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes; else echo "0"; fi } > MEM_BYTES
   >>>
 
   output {
diff --git a/pipes/WDL/tasks/tasks_demux.wdl b/pipes/WDL/tasks/tasks_demux.wdl
index 4b26bf816..99c52bf61 100644
--- a/pipes/WDL/tasks/tasks_demux.wdl
+++ b/pipes/WDL/tasks/tasks_demux.wdl
@@ -389,7 +389,7 @@ task illumina_demux {
     cat /proc/uptime | cut -f 1 -d ' ' > UPTIME_SEC
     cat /proc/loadavg | cut -f 3 -d ' ' > LOAD_15M
     set +o pipefail
-    { cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes || echo 0; } > MEM_BYTES
+    { if [ -f /sys/fs/cgroup/memory.peak ]; then cat /sys/fs/cgroup/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.peak ]; then cat /sys/fs/cgroup/memory/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.max_usage_in_bytes ]; then cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes; else echo "0"; fi } > MEM_BYTES
   >>>
 
   output {
diff --git a/pipes/WDL/tasks/tasks_interhost.wdl b/pipes/WDL/tasks/tasks_interhost.wdl
index e19f29557..5be0c3bb4 100644
--- a/pipes/WDL/tasks/tasks_interhost.wdl
+++ b/pipes/WDL/tasks/tasks_interhost.wdl
@@ -123,7 +123,7 @@ task subsample_by_cases {
         set +o pipefail
         cat /proc/uptime | cut -f 1 -d ' ' > UPTIME_SEC
         cat /proc/loadavg > CPU_LOAD
-        { cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes || echo 0; } > MEM_BYTES
+        { if [ -f /sys/fs/cgroup/memory.peak ]; then cat /sys/fs/cgroup/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.peak ]; then cat /sys/fs/cgroup/memory/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.max_usage_in_bytes ]; then cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes; else echo "0"; fi } > MEM_BYTES
 
     >>>
     runtime {
diff --git a/pipes/WDL/tasks/tasks_nextstrain.wdl b/pipes/WDL/tasks/tasks_nextstrain.wdl
index 691ded9c0..41b2c2c86 100644
--- a/pipes/WDL/tasks/tasks_nextstrain.wdl
+++ b/pipes/WDL/tasks/tasks_nextstrain.wdl
@@ -172,7 +172,7 @@ task nextclade_many_samples {
         # gather runtime metrics
         cat /proc/uptime | cut -f 1 -d ' ' > UPTIME_SEC
         cat /proc/loadavg > CPU_LOAD
-        { cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes || echo 0; } > MEM_BYTES
+        { if [ -f /sys/fs/cgroup/memory.peak ]; then cat /sys/fs/cgroup/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.peak ]; then cat /sys/fs/cgroup/memory/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.max_usage_in_bytes ]; then cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes; else echo "0"; fi } > MEM_BYTES
     >>>
     runtime {
         docker: docker
@@ -566,7 +566,7 @@ task nextstrain_build_subsample {
         cd ..
         cat /proc/uptime | cut -f 1 -d ' ' > UPTIME_SEC
         cat /proc/loadavg > CPU_LOAD
-        { cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes || echo 0; } > MEM_BYTES
+        { if [ -f /sys/fs/cgroup/memory.peak ]; then cat /sys/fs/cgroup/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.peak ]; then cat /sys/fs/cgroup/memory/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.max_usage_in_bytes ]; then cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes; else echo "0"; fi } > MEM_BYTES
     >>>
     runtime {
         docker: docker
@@ -815,7 +815,7 @@ task filter_subsample_sequences {
         grep "strains passed all filters" STDOUT | cut -f 1 -d ' ' > OUT_COUNT
         cat /proc/uptime | cut -f 1 -d ' ' > UPTIME_SEC
         cat /proc/loadavg > CPU_LOAD
-        { cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes || echo 0; } > MEM_BYTES
+        { if [ -f /sys/fs/cgroup/memory.peak ]; then cat /sys/fs/cgroup/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.peak ]; then cat /sys/fs/cgroup/memory/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.max_usage_in_bytes ]; then cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes; else echo "0"; fi } > MEM_BYTES
     >>>
     runtime {
         docker: docker
@@ -913,7 +913,7 @@ task filter_sequences_to_list {
 
         cat /proc/uptime | cut -f 1 -d ' ' > UPTIME_SEC
         cat /proc/loadavg > CPU_LOAD
-        { cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes || echo 0; } > MEM_BYTES
+        { if [ -f /sys/fs/cgroup/memory.peak ]; then cat /sys/fs/cgroup/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.peak ]; then cat /sys/fs/cgroup/memory/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.max_usage_in_bytes ]; then cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes; else echo "0"; fi } > MEM_BYTES
     >>>
     runtime {
         docker: docker
@@ -1004,7 +1004,7 @@ task mafft_one_chr {
         # profiling and stats
         cat /proc/uptime | cut -f 1 -d ' ' > UPTIME_SEC
         cat /proc/loadavg > CPU_LOAD
-        { cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes || echo 0; } > MEM_BYTES
+        { if [ -f /sys/fs/cgroup/memory.peak ]; then cat /sys/fs/cgroup/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.peak ]; then cat /sys/fs/cgroup/memory/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.max_usage_in_bytes ]; then cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes; else echo "0"; fi } > MEM_BYTES
     >>>
     runtime {
         docker: docker
@@ -1112,7 +1112,7 @@ task mafft_one_chr_chunked {
         # profiling and stats
         cat /proc/uptime | cut -f 1 -d ' ' > UPTIME_SEC
         cat /proc/loadavg > CPU_LOAD
-        { cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes || echo 0; } > MEM_BYTES
+        { if [ -f /sys/fs/cgroup/memory.peak ]; then cat /sys/fs/cgroup/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.peak ]; then cat /sys/fs/cgroup/memory/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.max_usage_in_bytes ]; then cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes; else echo "0"; fi } > MEM_BYTES
     >>>
     runtime {
         docker: docker
@@ -1161,7 +1161,7 @@ task augur_mafft_align {
             --nthreads auto
         cat /proc/uptime | cut -f 1 -d ' ' > UPTIME_SEC
         cat /proc/loadavg > CPU_LOAD
-        { cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes || echo 0; } > MEM_BYTES
+        { if [ -f /sys/fs/cgroup/memory.peak ]; then cat /sys/fs/cgroup/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.peak ]; then cat /sys/fs/cgroup/memory/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.max_usage_in_bytes ]; then cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes; else echo "0"; fi } > MEM_BYTES
     >>>
     runtime {
         docker: docker
@@ -1241,7 +1241,7 @@ task augur_mask_sites {
         fi
         cat /proc/uptime | cut -f 1 -d ' ' > UPTIME_SEC
         cat /proc/loadavg > CPU_LOAD
-        { cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes || echo 0; } > MEM_BYTES
+        { if [ -f /sys/fs/cgroup/memory.peak ]; then cat /sys/fs/cgroup/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.peak ]; then cat /sys/fs/cgroup/memory/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.max_usage_in_bytes ]; then cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes; else echo "0"; fi } > MEM_BYTES
     >>>
     runtime {
         docker: docker
@@ -1300,7 +1300,7 @@ task draft_augur_tree {
             --nthreads auto
         cat /proc/uptime | cut -f 1 -d ' ' > UPTIME_SEC
         cat /proc/loadavg > CPU_LOAD
-        { cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes || echo 0; } > MEM_BYTES
+        { if [ -f /sys/fs/cgroup/memory.peak ]; then cat /sys/fs/cgroup/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.peak ]; then cat /sys/fs/cgroup/memory/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.max_usage_in_bytes ]; then cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes; else echo "0"; fi } > MEM_BYTES
     >>>
     runtime {
         docker: docker
@@ -1384,7 +1384,7 @@ task refine_augur_tree {
             ~{"--vcf-reference " + vcf_reference}
         cat /proc/uptime | cut -f 1 -d ' ' > UPTIME_SEC
         cat /proc/loadavg > CPU_LOAD
-        { cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes || echo 0; } > MEM_BYTES
+        { if [ -f /sys/fs/cgroup/memory.peak ]; then cat /sys/fs/cgroup/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.peak ]; then cat /sys/fs/cgroup/memory/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.max_usage_in_bytes ]; then cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes; else echo "0"; fi } > MEM_BYTES
     >>>
     runtime {
         docker: docker
@@ -1437,7 +1437,7 @@ task ancestral_traits {
             ~{true="--confidence" false="" confidence}
         cat /proc/uptime | cut -f 1 -d ' ' > UPTIME_SEC
         cat /proc/loadavg > CPU_LOAD
-        { cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes || echo 0; } > MEM_BYTES
+        { if [ -f /sys/fs/cgroup/memory.peak ]; then cat /sys/fs/cgroup/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.peak ]; then cat /sys/fs/cgroup/memory/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.max_usage_in_bytes ]; then cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes; else echo "0"; fi } > MEM_BYTES
     >>>
     runtime {
         docker: docker
@@ -1499,7 +1499,7 @@ task ancestral_tree {
             ~{true="--infer-ambiguous" false="" infer_ambiguous}
         cat /proc/uptime | cut -f 1 -d ' ' > UPTIME_SEC
         cat /proc/loadavg > CPU_LOAD
-        { cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes || echo 0; } > MEM_BYTES
+        { if [ -f /sys/fs/cgroup/memory.peak ]; then cat /sys/fs/cgroup/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.peak ]; then cat /sys/fs/cgroup/memory/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.max_usage_in_bytes ]; then cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes; else echo "0"; fi } > MEM_BYTES
     >>>
     runtime {
         docker: docker
@@ -1548,7 +1548,7 @@ task translate_augur_tree {
             ~{"--vcf-reference " + vcf_reference} \
             ~{"--genes " + genes} \
             --output-node-data ~{out_basename}_aa_muts.json
-        { cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes || echo 0; } > MEM_BYTES
+        { if [ -f /sys/fs/cgroup/memory.peak ]; then cat /sys/fs/cgroup/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.peak ]; then cat /sys/fs/cgroup/memory/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.max_usage_in_bytes ]; then cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes; else echo "0"; fi } > MEM_BYTES
     >>>
     runtime {
         docker: docker
@@ -1619,7 +1619,7 @@ task tip_frequencies {
 
         cat /proc/uptime | cut -f 1 -d ' ' > UPTIME_SEC
         cat /proc/loadavg > CPU_LOAD
-        { cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes || echo 0; } > MEM_BYTES
+        { if [ -f /sys/fs/cgroup/memory.peak ]; then cat /sys/fs/cgroup/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.peak ]; then cat /sys/fs/cgroup/memory/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.max_usage_in_bytes ]; then cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes; else echo "0"; fi } > MEM_BYTES
     >>>
     runtime {
         docker: docker
@@ -1664,7 +1664,7 @@ task assign_clades_to_nodes {
         --reference "~{ref_fasta}" \
         --clades "~{clades_tsv}" \
         --output-node-data "~{out_basename}_clades.json"
-        { cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes || echo 0; } > MEM_BYTES
+        { if [ -f /sys/fs/cgroup/memory.peak ]; then cat /sys/fs/cgroup/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.peak ]; then cat /sys/fs/cgroup/memory/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.max_usage_in_bytes ]; then cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes; else echo "0"; fi } > MEM_BYTES
     >>>
     runtime {
         docker: docker
@@ -1713,7 +1713,7 @@ task augur_import_beast {
             ~{"--tip-date-delimeter " + tip_date_delimiter}
         cat /proc/uptime | cut -f 1 -d ' ' > UPTIME_SEC
         cat /proc/loadavg > CPU_LOAD
-        { cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes || echo 0; } > MEM_BYTES
+        { if [ -f /sys/fs/cgroup/memory.peak ]; then cat /sys/fs/cgroup/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.peak ]; then cat /sys/fs/cgroup/memory/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.max_usage_in_bytes ]; then cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes; else echo "0"; fi } > MEM_BYTES
     >>>
     runtime {
         docker: docker
@@ -1816,7 +1816,7 @@ task export_auspice_json {
         cat /proc/uptime | cut -f 1 -d ' ' > UPTIME_SEC
         cat /proc/loadavg > CPU_LOAD
         set +o pipefail
-        { cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes || echo 0; } > MEM_BYTES
+        { if [ -f /sys/fs/cgroup/memory.peak ]; then cat /sys/fs/cgroup/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.peak ]; then cat /sys/fs/cgroup/memory/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.max_usage_in_bytes ]; then cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes; else echo "0"; fi } > MEM_BYTES
     >>>
     runtime {
         docker: docker
diff --git a/pipes/WDL/tasks/tasks_reports.wdl b/pipes/WDL/tasks/tasks_reports.wdl
index e6c3bd20f..c849762b5 100644
--- a/pipes/WDL/tasks/tasks_reports.wdl
+++ b/pipes/WDL/tasks/tasks_reports.wdl
@@ -580,7 +580,7 @@ task compare_two_genomes {
     cat /proc/uptime | cut -f 1 -d ' ' > UPTIME_SEC
     cat /proc/loadavg > CPU_LOAD
     set +o pipefail
-    { cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes || echo 0; } > MEM_BYTES
+    { if [ -f /sys/fs/cgroup/memory.peak ]; then cat /sys/fs/cgroup/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.peak ]; then cat /sys/fs/cgroup/memory/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.max_usage_in_bytes ]; then cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes; else echo "0"; fi } > MEM_BYTES
   >>>
 
   output {
diff --git a/pipes/WDL/tasks/tasks_utils.wdl b/pipes/WDL/tasks/tasks_utils.wdl
index bdbc74eb7..1231374cd 100644
--- a/pipes/WDL/tasks/tasks_utils.wdl
+++ b/pipes/WDL/tasks/tasks_utils.wdl
@@ -101,7 +101,7 @@ task zcat {
         # gather runtime metrics
         cat /proc/uptime | cut -f 1 -d ' ' > UPTIME_SEC
         cat /proc/loadavg > CPU_LOAD
-        { cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes || echo 0; } > MEM_BYTES
+        { if [ -f /sys/fs/cgroup/memory.peak ]; then cat /sys/fs/cgroup/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.peak ]; then cat /sys/fs/cgroup/memory/memory.peak; elif [ -f /sys/fs/cgroup/memory/memory.max_usage_in_bytes ]; then cat /sys/fs/cgroup/memory/memory.max_usage_in_bytes; else echo "0"; fi } > MEM_BYTES
     >>>
     runtime {
         docker: "quay.io/broadinstitute/viral-core:2.1.33"