diff --git a/src/dvsim/instrumentation/metadata.py b/src/dvsim/instrumentation/metadata.py
index d8dd6d5..7871db1 100644
--- a/src/dvsim/instrumentation/metadata.py
+++ b/src/dvsim/instrumentation/metadata.py
@@ -28,6 +28,7 @@ class MetadataJobFragment(JobFragment):
     full_name: str
     job_type: str
     target: str
+    tool: str
     dependencies: list[str]
     status: str
 
@@ -59,6 +60,7 @@ def build_report_fragments(self) -> InstrumentationFragments | None:
                 spec.full_name,
                 spec.job_type,
                 spec.target,
+                spec.tool.name,
                 spec.dependencies,
                 status_str,
             )
diff --git a/src/dvsim/instrumentation/resources.py b/src/dvsim/instrumentation/resources.py
index f010f01..7f54e49 100644
--- a/src/dvsim/instrumentation/resources.py
+++ b/src/dvsim/instrumentation/resources.py
@@ -58,7 +58,6 @@ class ResourceJobFragment(JobFragment):
     max_rss_bytes: int | None = None
     avg_rss_bytes: float | None = None
     avg_cpu_percent: float | None = None
-    avg_cpu_per_core: list[float] | None = None
 
     num_resource_samples: int = 0
 
@@ -69,50 +68,36 @@ class JobResourceAggregate:
     Tracks aggregate information over a number of samples whilst minimizing memory usage.
     """
 
-    def __init__(self, job: JobSpec, num_cores: int | None) -> None:
+    def __init__(self, job: JobSpec) -> None:
         """Construct an aggregate for storing sampling info for a given job specification.
 
         Arguments:
             job: The specification of the job which is having its information aggregated.
-            num_cores: The number of logical CPU cores available on the host system.
 
         """
         self.job_spec = job
-        self.num_cores = num_cores
         self.sample_count = 0
         self.sum_rss = 0.0
         self.max_rss = 0
         self.sum_cpu = 0.0
-        if num_cores:
-            self.sum_cpu_per_core = [0.0] * num_cores
 
-    def add_sample(self, rss: int, cpu: float, cpu_per_core: list[float]) -> None:
+    def add_sample(self, rss: int, cpu: float) -> None:
         """Aggregate an additional resource sample taken during this job's active window."""
         self.sample_count += 1
         self.sum_rss += rss
         self.max_rss = max(self.max_rss, rss)
         self.sum_cpu += cpu
-        if self.num_cores:
-            self.sum_cpu_per_core = [
-                total + n for total, n in zip(self.sum_cpu_per_core, cpu_per_core, strict=True)
-            ]
 
     def finalize(self) -> ResourceJobFragment:
         """Finalize the aggregated information for a job, generating a report fragment."""
         if self.sample_count == 0:
             return ResourceJobFragment(self.job_spec)
 
-        if self.num_cores:
-            avg_cpu_per_core = [x / self.sample_count for x in self.sum_cpu_per_core]
-        else:
-            avg_cpu_per_core = None
-
         return ResourceJobFragment(
             self.job_spec,
             max_rss_bytes=self.max_rss,
             avg_rss_bytes=self.sum_rss / self.sample_count,
             avg_cpu_percent=self.sum_cpu / self.sample_count,
-            avg_cpu_per_core=avg_cpu_per_core,
             num_resource_samples=self.sample_count,
         )
 
@@ -218,7 +203,7 @@ def _sampling_loop(self) -> None:
             # Update all running job aggregates with system sample
             with self._lock:
                 for aggregate in self._running_jobs.values():
-                    aggregate.add_sample(sys_rss, sys_cpu, sys_cpu_per_core)
+                    aggregate.add_sample(sys_rss, sys_cpu)
 
             sleep_time = max(next_run_at - time.time(), 0)
             time.sleep(sleep_time)
@@ -239,7 +224,7 @@ def on_job_status_change(self, job: JobSpec, status: JobStatus) -> None:
             running = job_id in self._running_jobs
             started = running or job_id in self._finished_jobs
             if not started and status != JobStatus.QUEUED:
-                self._running_jobs[job_id] = JobResourceAggregate(job, self._num_cores)
+                self._running_jobs[job_id] = JobResourceAggregate(job)
                 running = True
             if running and status.ended:
                 aggregates = self._running_jobs.pop(job_id)