diff --git a/UE701/SEMESTRE__2024_25/SEANCE_02-19NOV2024/sf1a.c b/UE701/SEMESTRE__2024_25/SEANCE_02-19NOV2024/sf1a.c
new file mode 100644
index 0000000000000000000000000000000000000000..211b8f14ffb4e683e9df06e21d07077354a29666
--- /dev/null
+++ b/UE701/SEMESTRE__2024_25/SEANCE_02-19NOV2024/sf1a.c
@@ -0,0 +1,20 @@
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+ 
+int main() {
+ 
+    unsigned cpu, node;
+ 
+    // Get current CPU core and NUMA node via system call
+    // Note this has no glibc wrapper so we must call it directly
+    syscall(SYS_getcpu, &cpu, &node, NULL);
+ 
+    // Display information
+    printf("This program is running on CPU core %u and NUMA node %u.\n\n", cpu, node);
+ 
+    return 0;
+ 
+}
+