From 503a66009def0b89e7085113e5be7cabd52b0520 Mon Sep 17 00:00:00 2001
From: "Julian M. Kunkel" <juliankunkel@googlemail.com>
Date: Tue, 20 Aug 2019 15:54:18 +0100
Subject: [PATCH] First build version.

---
 emulation/ngi.c           |  5 +++++
 emulation/ngi.h           |  9 +++++++++
 test/data-gen.c           | 32 ++++++++++++++++++++++++++++++++
 test/reduce-ngi.c         | 39 +++++++++++++++++++++++++++++++++++++++
 test/reduce-traditional.c | 36 ++++++++++++++++++++++++++++++++++++
 test/run.sh               | 19 +++++++++++++++++++
 6 files changed, 140 insertions(+)
 create mode 100644 emulation/ngi.c
 create mode 100644 emulation/ngi.h
 create mode 100644 test/data-gen.c
 create mode 100644 test/reduce-ngi.c
 create mode 100644 test/reduce-traditional.c
 create mode 100755 test/run.sh

diff --git a/emulation/ngi.c b/emulation/ngi.c
new file mode 100644
index 0000000..913fa87
--- /dev/null
+++ b/emulation/ngi.c
@@ -0,0 +1,5 @@
+#include <ngi.h>
+
+void server_reduce(FILE * file, size_t off, size_t size){
+  
+}
diff --git a/emulation/ngi.h b/emulation/ngi.h
new file mode 100644
index 0000000..0a4efdb
--- /dev/null
+++ b/emulation/ngi.h
@@ -0,0 +1,9 @@
+#ifndef NGI_H_
+#define NGI_H_
+
+#include <stdlib.h>
+#include <stdio.h>
+
+void server_reduce(FILE * file, size_t off, size_t size);
+
+#endif
diff --git a/test/data-gen.c b/test/data-gen.c
new file mode 100644
index 0000000..013ed72
--- /dev/null
+++ b/test/data-gen.c
@@ -0,0 +1,32 @@
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <assert.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <float.h>
+
+
+/*
+ * Generate test data
+ */
+
+// generate some data such that we can reduce it later
+void prepare_data(int size){
+  float * data = malloc(size * sizeof(float));
+  for(int i=0; i < size; i++){
+    data[i] = (float) i;
+  }
+
+  FILE * file = fopen("data.bin", "wb");
+  fwrite(data, size*sizeof(float), 1, file);
+
+  fclose(file);
+  free(data);
+}
+
+int main(){
+  int size = 100;
+  prepare_data(size);
+  return 0;
+}
diff --git a/test/reduce-ngi.c b/test/reduce-ngi.c
new file mode 100644
index 0000000..3376a12
--- /dev/null
+++ b/test/reduce-ngi.c
@@ -0,0 +1,39 @@
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <assert.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <float.h>
+
+#include <ngi.h>
+
+/*
+ * This application applies the reduce operation using the server-side compute using NGI
+ */
+
+// read the data and reduce it
+void reduce_data(int size){
+  float * data = malloc(size * sizeof(float));
+  FILE * file = fopen("data.bin", "rb");
+  fread(data, size*sizeof(float), 1, file);
+  fclose(file);
+
+  server_reduce(file, 0, size*sizeof(float));
+
+  float mx = FLT_MIN;
+  for(int i=0; i < size; i++){
+    mx = data[i] > mx ? data[i]: mx;
+  }
+  free(data);
+
+  printf("Maximum: %f\n", mx);
+}
+
+
+
+int main(){
+  int size = 100;
+  reduce_data(size);
+  return 0;
+}
diff --git a/test/reduce-traditional.c b/test/reduce-traditional.c
new file mode 100644
index 0000000..f97d9e0
--- /dev/null
+++ b/test/reduce-traditional.c
@@ -0,0 +1,36 @@
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <assert.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <float.h>
+
+
+/*
+ * This application shows a traditional reduce operation
+ */
+
+// read the data and reduce it
+void reduce_data(int size){
+  float * data = malloc(size * sizeof(float));
+  FILE * file = fopen("data.bin", "rb");
+  fread(data, size*sizeof(float), 1, file);
+  fclose(file);
+
+  float mx = FLT_MIN;
+  for(int i=0; i < size; i++){
+    mx = data[i] > mx ? data[i]: mx;
+  }
+  free(data);
+
+  printf("Maximum: %f\n", mx);
+}
+
+
+
+int main(){
+  int size = 100;
+  reduce_data(size);
+  return 0;
+}
diff --git a/test/run.sh b/test/run.sh
new file mode 100755
index 0000000..2895cf1
--- /dev/null
+++ b/test/run.sh
@@ -0,0 +1,19 @@
+#!/bin/bash -e
+
+gcc -Wall -Wextra data-gen.c -o data-gen -g3
+
+gcc -Wall -Wextra reduce-traditional.c -o reduce-traditional -g3
+
+
+
+# Build NGI lib
+gcc -Wall -Wextra ../emulation/ngi.c -shared -fpic -o libngi.so -g3 -I../emulation/
+# Build client application
+gcc -Wall -Wextra reduce-ngi.c -o reduce-ngi -g3 -I../emulation/ -L. -l ngi -Wl,-rpath=$PWD
+
+echo "Data generation"
+./data-gen
+echo "Executing traditional"
+./reduce-traditional
+echo "Executing NGI"
+./reduce-ngi