From ac5aa37758459ad026b07a0ea97b0a10a2eef34a Mon Sep 17 00:00:00 2001
From: Maddiaa0 <47148561+Maddiaa0@users.noreply.github.com>
Date: Mon, 3 Mar 2025 16:05:53 +0000
Subject: [PATCH 1/7] chore: calculate available memory for
 noir-projects/bootstrap.sh memsuspend

---
 noir-projects/noir-contracts/bootstrap.sh | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/noir-projects/noir-contracts/bootstrap.sh b/noir-projects/noir-contracts/bootstrap.sh
index 57a6900e2c53..2f6af1ea557d 100755
--- a/noir-projects/noir-contracts/bootstrap.sh
+++ b/noir-projects/noir-contracts/bootstrap.sh
@@ -38,8 +38,23 @@ function on_exit() {
 trap on_exit EXIT
 mkdir -p $tmp_dir
 
+function get_hardware_memory {
+  local os=$(uname -s)
+  local total_mem_gb=64 # Default to 64GB
+
+  if [[ "$os" == "Darwin" ]]; then
+    total_mem_bytes=$(sysctl -n hw.memsize)
+    total_mem_gb=$((total_mem_bytes / 1024 / 1024 / 1024))
+  elif [[ "$os" == "Linux" ]]; then
+    total_mem_gb=$(free -g | awk '/^Mem:/ {print $2}')
+  fi
+
+  echo $(( total_mem_gb < 64 ? total_mem_gb : 64 ))
+}
+
+hardware_memory=$(get_hardware_memory)
 # Set common flags for parallel.
-export PARALLEL_FLAGS="-j${PARALLELISM:-16} --halt now,fail=1 --memsuspend ${MEMSUSPEND:-64G}"
+export PARALLEL_FLAGS="-j${PARALLELISM:-16} --halt now,fail=1 --memsuspend ${MEMSUSPEND:-${hardware_memory}G}"
 
 # This computes a vk and adds it to the input function json if it's private, else returns same input.
 # stdin has the function json.

From b78361deb0969d708ce9bc852cf0c353284c0cc1 Mon Sep 17 00:00:00 2001
From: Maddiaa0 <47148561+Maddiaa0@users.noreply.github.com>
Date: Mon, 3 Mar 2025 16:11:11 +0000
Subject: [PATCH 2/7] fix: move to memsuspend_limit file

---
 ci3/memsuspend_limit                      | 20 ++++++++++++++++++++
 noir-projects/noir-contracts/bootstrap.sh | 17 +----------------
 2 files changed, 21 insertions(+), 16 deletions(-)
 create mode 100644 ci3/memsuspend_limit

diff --git a/ci3/memsuspend_limit b/ci3/memsuspend_limit
new file mode 100644
index 000000000000..0215efaba5cb
--- /dev/null
+++ b/ci3/memsuspend_limit
@@ -0,0 +1,20 @@
+#!/bin/bash
+
+# Get the hardware memory in GB, useful for setting the memsuspend limit.
+function get_hardware_memory {
+  local os=$(uname -s)
+  local total_mem_gb=64 # Default to 64GB
+
+  if [[ "$os" == "Darwin" ]]; then
+    total_mem_bytes=$(sysctl -n hw.memsize)
+    total_mem_gb=$((total_mem_bytes / 1024 / 1024 / 1024))
+  elif [[ "$os" == "Linux" ]]; then
+    total_mem_gb=$(free -g | awk '/^Mem:/ {print $2}')
+  fi
+
+  echo $(( total_mem_gb < 64 ? total_mem_gb : 64 ))
+}
+
+hardware_memory=$(get_hardware_memory)
+
+export MEMSUSPEND=${MEMSUSPEND:-${hardware_memory}G}
diff --git a/noir-projects/noir-contracts/bootstrap.sh b/noir-projects/noir-contracts/bootstrap.sh
index 2f6af1ea557d..57a6900e2c53 100755
--- a/noir-projects/noir-contracts/bootstrap.sh
+++ b/noir-projects/noir-contracts/bootstrap.sh
@@ -38,23 +38,8 @@ function on_exit() {
 trap on_exit EXIT
 mkdir -p $tmp_dir
 
-function get_hardware_memory {
-  local os=$(uname -s)
-  local total_mem_gb=64 # Default to 64GB
-
-  if [[ "$os" == "Darwin" ]]; then
-    total_mem_bytes=$(sysctl -n hw.memsize)
-    total_mem_gb=$((total_mem_bytes / 1024 / 1024 / 1024))
-  elif [[ "$os" == "Linux" ]]; then
-    total_mem_gb=$(free -g | awk '/^Mem:/ {print $2}')
-  fi
-
-  echo $(( total_mem_gb < 64 ? total_mem_gb : 64 ))
-}
-
-hardware_memory=$(get_hardware_memory)
 # Set common flags for parallel.
-export PARALLEL_FLAGS="-j${PARALLELISM:-16} --halt now,fail=1 --memsuspend ${MEMSUSPEND:-${hardware_memory}G}"
+export PARALLEL_FLAGS="-j${PARALLELISM:-16} --halt now,fail=1 --memsuspend ${MEMSUSPEND:-64G}"
 
 # This computes a vk and adds it to the input function json if it's private, else returns same input.
 # stdin has the function json.

From 565eeea5b7934a804d0746f43d20557e31ea92cd Mon Sep 17 00:00:00 2001
From: Maddiaa0 <47148561+Maddiaa0@users.noreply.github.com>
Date: Mon, 3 Mar 2025 16:19:27 +0000
Subject: [PATCH 3/7] Update

---
 ci3/memsuspend_limit | 8 ++++++++
 1 file changed, 8 insertions(+)
 mode change 100644 => 100755 ci3/memsuspend_limit

diff --git a/ci3/memsuspend_limit b/ci3/memsuspend_limit
old mode 100644
new mode 100755
index 0215efaba5cb..872b253d2b13
--- a/ci3/memsuspend_limit
+++ b/ci3/memsuspend_limit
@@ -1,6 +1,10 @@
 #!/bin/bash
+set -x
 
 # Get the hardware memory in GB, useful for setting the memsuspend limit.
+# General rul of thumb:
+# - Allocate 1/4 of total hardware memory for the build.
+# - Max out at 64GB
 function get_hardware_memory {
   local os=$(uname -s)
   local total_mem_gb=64 # Default to 64GB
@@ -12,6 +16,10 @@ function get_hardware_memory {
     total_mem_gb=$(free -g | awk '/^Mem:/ {print $2}')
   fi
 
+  # Allocate 1/4 of total hardware memory for the build.
+  total_mem_gb=$((total_mem_gb / 4))
+
+  # Max out at 64GB
   echo $(( total_mem_gb < 64 ? total_mem_gb : 64 ))
 }
 

From 4a5647eee33da55676e72ddddb1a0b151a3de6de Mon Sep 17 00:00:00 2001
From: Maddiaa0 <47148561+Maddiaa0@users.noreply.github.com>
Date: Mon, 3 Mar 2025 16:23:15 +0000
Subject: [PATCH 4/7] fix: remove set -x

---
 ci3/memsuspend_limit | 1 -
 1 file changed, 1 deletion(-)

diff --git a/ci3/memsuspend_limit b/ci3/memsuspend_limit
index 872b253d2b13..240f4d0a8f95 100755
--- a/ci3/memsuspend_limit
+++ b/ci3/memsuspend_limit
@@ -1,5 +1,4 @@
 #!/bin/bash
-set -x
 
 # Get the hardware memory in GB, useful for setting the memsuspend limit.
 # General rul of thumb:

From 3d6f86bfed1adc00baf1d445ec3d689eecd0b0b4 Mon Sep 17 00:00:00 2001
From: ludamad <domuradical@gmail.com>
Date: Mon, 3 Mar 2025 17:06:02 +0000
Subject: [PATCH 5/7] call throughout

---
 ci3/memsuspend_limit                          | 35 +++++++++----------
 ci3/parallelise                               |  2 +-
 noir-projects/noir-contracts/bootstrap.sh     |  2 +-
 .../noir-protocol-circuits/bootstrap.sh       |  2 +-
 4 files changed, 20 insertions(+), 21 deletions(-)

diff --git a/ci3/memsuspend_limit b/ci3/memsuspend_limit
index 240f4d0a8f95..30350e53d709 100755
--- a/ci3/memsuspend_limit
+++ b/ci3/memsuspend_limit
@@ -1,27 +1,26 @@
 #!/bin/bash
+set -eu
 
 # Get the hardware memory in GB, useful for setting the memsuspend limit.
 # General rul of thumb:
 # - Allocate 1/4 of total hardware memory for the build.
 # - Max out at 64GB
-function get_hardware_memory {
-  local os=$(uname -s)
-  local total_mem_gb=64 # Default to 64GB
+if [ -n "${MEMSUSPEND:-}" ]; then
+  echo $MEMSUSPEND
+  exit
+fi
+os=$(uname -s)
+total_mem_gb=64 # Default to 64GB
 
-  if [[ "$os" == "Darwin" ]]; then
-    total_mem_bytes=$(sysctl -n hw.memsize)
-    total_mem_gb=$((total_mem_bytes / 1024 / 1024 / 1024))
-  elif [[ "$os" == "Linux" ]]; then
-    total_mem_gb=$(free -g | awk '/^Mem:/ {print $2}')
-  fi
+if [[ "$os" == "Darwin" ]]; then
+  total_mem_bytes=$(sysctl -n hw.memsize)
+  total_mem_gb=$((total_mem_bytes / 1024 / 1024 / 1024))
+elif [[ "$os" == "Linux" ]]; then
+  total_mem_gb=$(free -g | awk '/^Mem:/ {print $2}')
+fi
 
-  # Allocate 1/4 of total hardware memory for the build.
-  total_mem_gb=$((total_mem_gb / 4))
+# Allocate 1/4 of total hardware memory for the build.
+total_mem_gb=$((total_mem_gb / 4))
 
-  # Max out at 64GB
-  echo $(( total_mem_gb < 64 ? total_mem_gb : 64 ))
-}
-
-hardware_memory=$(get_hardware_memory)
-
-export MEMSUSPEND=${MEMSUSPEND:-${hardware_memory}G}
+# Max out at 64GB
+echo $(( total_mem_gb < 64 ? total_mem_gb : 64 ))G
diff --git a/ci3/parallelise b/ci3/parallelise
index 5fde397e88c9..3d6299640a50 100755
--- a/ci3/parallelise
+++ b/ci3/parallelise
@@ -5,7 +5,7 @@ NO_CD=1 source $(git rev-parse --show-toplevel)/ci3/source
 
 cd $root
 jobs=$(get_num_cpus_max ${1:-})
-parallel_args="-j$jobs --memsuspend ${MEMSUSPEND:-64G} --line-buffer --joblog joblog.txt"
+parallel_args="-j$jobs --memsuspend $(memsupend_limit) --line-buffer --joblog joblog.txt"
 
 # If not in CI, fail fast.
 if [ "$CI" -eq 0 ]; then
diff --git a/noir-projects/noir-contracts/bootstrap.sh b/noir-projects/noir-contracts/bootstrap.sh
index 57a6900e2c53..790043591cdf 100755
--- a/noir-projects/noir-contracts/bootstrap.sh
+++ b/noir-projects/noir-contracts/bootstrap.sh
@@ -39,7 +39,7 @@ trap on_exit EXIT
 mkdir -p $tmp_dir
 
 # Set common flags for parallel.
-export PARALLEL_FLAGS="-j${PARALLELISM:-16} --halt now,fail=1 --memsuspend ${MEMSUSPEND:-64G}"
+export PARALLEL_FLAGS="-j${PARALLELISM:-16} --halt now,fail=1 --memsuspend $(memsuspend_limit)"
 
 # This computes a vk and adds it to the input function json if it's private, else returns same input.
 # stdin has the function json.
diff --git a/noir-projects/noir-protocol-circuits/bootstrap.sh b/noir-projects/noir-protocol-circuits/bootstrap.sh
index 668dcde7b7d3..7bc5f830fae1 100755
--- a/noir-projects/noir-protocol-circuits/bootstrap.sh
+++ b/noir-projects/noir-protocol-circuits/bootstrap.sh
@@ -157,7 +157,7 @@ function build {
           echo "$(basename $dir)"
       fi
     done | \
-    parallel -v --line-buffer --tag --halt now,fail=1 --memsuspend ${MEMSUSPEND:-64G} \
+    parallel -v --line-buffer --tag --halt now,fail=1 --memsuspend $(memsuspend_limit) \
       --joblog joblog.txt compile {}
   code=$?
   cat joblog.txt

From 87052debb10d9f3126d26480fa6035a148e5a9d7 Mon Sep 17 00:00:00 2001
From: ludamad <adam.domurad@gmail.com>
Date: Mon, 3 Mar 2025 12:06:44 -0500
Subject: [PATCH 6/7] Update memsuspend_limit

---
 ci3/memsuspend_limit | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ci3/memsuspend_limit b/ci3/memsuspend_limit
index 30350e53d709..12e16e70c55f 100755
--- a/ci3/memsuspend_limit
+++ b/ci3/memsuspend_limit
@@ -2,7 +2,7 @@
 set -eu
 
 # Get the hardware memory in GB, useful for setting the memsuspend limit.
-# General rul of thumb:
+# General rule of thumb:
 # - Allocate 1/4 of total hardware memory for the build.
 # - Max out at 64GB
 if [ -n "${MEMSUSPEND:-}" ]; then

From b02555d748c1b39119a54688953a23ba3aef10e9 Mon Sep 17 00:00:00 2001
From: ludamad <adam.domurad@gmail.com>
Date: Mon, 3 Mar 2025 12:23:17 -0500
Subject: [PATCH 7/7] Update parallelise

---
 ci3/parallelise | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ci3/parallelise b/ci3/parallelise
index 3d6299640a50..9c27140d7b7f 100755
--- a/ci3/parallelise
+++ b/ci3/parallelise
@@ -5,7 +5,7 @@ NO_CD=1 source $(git rev-parse --show-toplevel)/ci3/source
 
 cd $root
 jobs=$(get_num_cpus_max ${1:-})
-parallel_args="-j$jobs --memsuspend $(memsupend_limit) --line-buffer --joblog joblog.txt"
+parallel_args="-j$jobs --memsuspend $(memsuspend_limit) --line-buffer --joblog joblog.txt"
 
 # If not in CI, fail fast.
 if [ "$CI" -eq 0 ]; then