diff --git a/C/Savina/src/concurrency/Banking.lf b/C/Savina/src/concurrency/Banking.lf
index 6331c78..57c8eb1 100644
--- a/C/Savina/src/concurrency/Banking.lf
+++ b/C/Savina/src/concurrency/Banking.lf
@@ -63,7 +63,8 @@
     files: ["../include/PseudoRandom.h", 
             "/lib/c/reactor-c/util/deque.h", 
             "/lib/c/reactor-c/util/deque.c"],
-    logging: warn
+    logging: warn,
+    fast: true
 };
 
 import BenchmarkRunner from "../BenchmarkRunner.lf";
diff --git a/C/Savina/src/concurrency/BoundedBuffer.lf b/C/Savina/src/concurrency/BoundedBuffer.lf
index f6d3de0..3e4af7d 100644
--- a/C/Savina/src/concurrency/BoundedBuffer.lf
+++ b/C/Savina/src/concurrency/BoundedBuffer.lf
@@ -35,7 +35,8 @@ target C {
             "/lib/c/reactor-c/util/deque.c",
             "../include/PseudoRandom.h"],
     flags: "-lm",
-    logging: "warn"
+    logging: "warn",
+    fast: true
 };
 
 import BenchmarkRunner from "../BenchmarkRunner.lf";
diff --git a/C/Savina/src/concurrency/CigaretteSmoker.lf b/C/Savina/src/concurrency/CigaretteSmoker.lf
index 67b5a25..99e1273 100644
--- a/C/Savina/src/concurrency/CigaretteSmoker.lf
+++ b/C/Savina/src/concurrency/CigaretteSmoker.lf
@@ -70,7 +70,8 @@ target C {
     ]]] */
     threading: false,
     /// [[[end]]]
-    files: "../include/PseudoRandom.h"
+    files: "../include/PseudoRandom.h",
+    fast: true
 };
 
 import BenchmarkRunner from "../BenchmarkRunner.lf";
diff --git a/C/Savina/src/concurrency/Dictionary.lf b/C/Savina/src/concurrency/Dictionary.lf
index e3c8873..b07f33b 100644
--- a/C/Savina/src/concurrency/Dictionary.lf
+++ b/C/Savina/src/concurrency/Dictionary.lf
@@ -36,7 +36,8 @@ target CCpp {
     threading: false,
     /// [[[end]]]
     build-type : RelWithDebInfo,
-    logging: "warn"
+    logging: "warn",
+    fast: true
 };
 
 import BenchmarkRunner from "../BenchmarkRunner.lf";
diff --git a/C/Savina/src/concurrency/LogisticMap.lf b/C/Savina/src/concurrency/LogisticMap.lf
index d69c5c2..b5fccc6 100644
--- a/C/Savina/src/concurrency/LogisticMap.lf
+++ b/C/Savina/src/concurrency/LogisticMap.lf
@@ -19,6 +19,7 @@ target C {
     ]]] */
     threading: false,
     /// [[[end]]]
+    fast: true
 }
 
 import BenchmarkRunner from "../BenchmarkRunner.lf";
diff --git a/C/Savina/src/concurrency/Philosophers.lf b/C/Savina/src/concurrency/Philosophers.lf
index 85e43a3..987871f 100644
--- a/C/Savina/src/concurrency/Philosophers.lf
+++ b/C/Savina/src/concurrency/Philosophers.lf
@@ -18,7 +18,8 @@ target C {
     ]]] */
     threading: false,
     /// [[[end]]]
-    logging: warn
+    logging: warn,
+    fast: true
 };
 
 import BenchmarkRunner from "../BenchmarkRunner.lf";
diff --git a/C/Savina/src/concurrency/SortedList.lf b/C/Savina/src/concurrency/SortedList.lf
index 241ee3d..02c5604 100644
--- a/C/Savina/src/concurrency/SortedList.lf
+++ b/C/Savina/src/concurrency/SortedList.lf
@@ -25,7 +25,8 @@ target CCpp {
     ]]] */
     threading: false,
     /// [[[end]]]
-    files: "../include/PseudoRandom.h"
+    files: "../include/PseudoRandom.h",
+    fast: true
 };
 
 import BenchmarkRunner from "../BenchmarkRunner.lf";
diff --git a/C/Savina/src/micro/Big.lf b/C/Savina/src/micro/Big.lf
index 89f0916..2814924 100644
--- a/C/Savina/src/micro/Big.lf
+++ b/C/Savina/src/micro/Big.lf
@@ -34,7 +34,8 @@ target C{
     ]]] */
     threading: false,
     /// [[[end]]]
-    files: "../include/PseudoRandom.h"
+    files: "../include/PseudoRandom.h",
+    fast: true
 };
 
 import BenchmarkRunner from "../BenchmarkRunner.lf";
diff --git a/C/Savina/src/micro/Chameneos.lf b/C/Savina/src/micro/Chameneos.lf
index 88ba0d7..7231073 100644
--- a/C/Savina/src/micro/Chameneos.lf
+++ b/C/Savina/src/micro/Chameneos.lf
@@ -48,7 +48,8 @@ target C {
     ]]] */
     threading: false,
     /// [[[end]]]
-    logging: warn
+    logging: warn,
+    fast: true
 }
 
 import BenchmarkRunner from "../BenchmarkRunner.lf";
diff --git a/C/Savina/src/micro/Counting.lf b/C/Savina/src/micro/Counting.lf
index a6fb221..9486db6 100644
--- a/C/Savina/src/micro/Counting.lf
+++ b/C/Savina/src/micro/Counting.lf
@@ -49,6 +49,7 @@ target C {
     ]]] */
     threading: false,
     /// [[[end]]]
+    fast: true
 }
 
 import BenchmarkRunner from "../BenchmarkRunner.lf";
diff --git a/C/Savina/src/micro/ThreadRing.lf b/C/Savina/src/micro/ThreadRing.lf
index 585275e..d85496b 100644
--- a/C/Savina/src/micro/ThreadRing.lf
+++ b/C/Savina/src/micro/ThreadRing.lf
@@ -62,6 +62,7 @@ target C {
     ]]] */
     threading: false,
     /// [[[end]]]
+    fast: true
 };
 
 import BenchmarkRunner from "../BenchmarkRunner.lf";
diff --git a/C/Savina/src/micro/Throughput.lf b/C/Savina/src/micro/Throughput.lf
index 15b89a8..c65d4f9 100644
--- a/C/Savina/src/micro/Throughput.lf
+++ b/C/Savina/src/micro/Throughput.lf
@@ -63,7 +63,8 @@ target C {
     ]]] */
     threading: false,
     /// [[[end]]]
-    flags: "-lm"
+    flags: "-lm",
+    fast: true
 };
 
 import BenchmarkRunner from "../BenchmarkRunner.lf";
diff --git a/C/Savina/src/parallelism/Apsp.lf b/C/Savina/src/parallelism/Apsp.lf
index 7790f8b..8c2d31c 100644
--- a/C/Savina/src/parallelism/Apsp.lf
+++ b/C/Savina/src/parallelism/Apsp.lf
@@ -30,7 +30,8 @@ target C {
     /// [[[end]]]
     build-type : RelWithDebInfo,
     cmake-include: ["../lib/matrix.cmake"],
-    files: ["../include/matrix.h", "../lib/matrix.c", "../include/PseudoRandom.h"]
+    files: ["../include/matrix.h", "../lib/matrix.c", "../include/PseudoRandom.h"],
+    fast: true
 };
 
 import BenchmarkRunner from "../BenchmarkRunner.lf";
diff --git a/C/Savina/src/parallelism/GuidedSearch.lf b/C/Savina/src/parallelism/GuidedSearch.lf
index 70f3fac..238be27 100644
--- a/C/Savina/src/parallelism/GuidedSearch.lf
+++ b/C/Savina/src/parallelism/GuidedSearch.lf
@@ -75,7 +75,8 @@ target CCpp {
         "GuidedSearch/GuidedSearchCommon.hh", 
         "GuidedSearch/GridNode.cc", 
         "GuidedSearch/GridNode.hh"],
-    logging: "warn"
+    logging: "warn",
+    fast: true
 };
 
 import BenchmarkRunner from "../BenchmarkRunner.lf";
diff --git a/C/Savina/src/parallelism/MatMul.lf b/C/Savina/src/parallelism/MatMul.lf
index f8d61fe..f77539d 100644
--- a/C/Savina/src/parallelism/MatMul.lf
+++ b/C/Savina/src/parallelism/MatMul.lf
@@ -19,7 +19,8 @@ target C {
     /// [[[end]]]
     cmake-include: "../lib/matrix.cmake",
     files: ["../lib/matrix.c", "../include/matrix.h"],
-    build-type: RelWithDebInfo
+    build-type: RelWithDebInfo,
+    fast: true
 };
 
 import BenchmarkRunner from "../BenchmarkRunner.lf";
diff --git a/C/Savina/src/parallelism/NQueens.lf b/C/Savina/src/parallelism/NQueens.lf
index 83aed4a..f8e65ff 100644
--- a/C/Savina/src/parallelism/NQueens.lf
+++ b/C/Savina/src/parallelism/NQueens.lf
@@ -50,7 +50,8 @@ target C{
     /// [[[end]]]
     logging: warn,
     cmake-include: "/lib/c/reactor-c/util/deque.cmake",
-    files: ["/lib/c/reactor-c/util/deque.h", "/lib/c/reactor-c/util/deque.c"]
+    files: ["/lib/c/reactor-c/util/deque.h", "/lib/c/reactor-c/util/deque.c"],
+    fast: true
     
 };
 
diff --git a/C/Savina/src/parallelism/PiPrecision.lf b/C/Savina/src/parallelism/PiPrecision.lf
index 01f19e2..206e5cd 100644
--- a/C/Savina/src/parallelism/PiPrecision.lf
+++ b/C/Savina/src/parallelism/PiPrecision.lf
@@ -24,7 +24,8 @@ target C {
     ]]] */
     threading: false,
     /// [[[end]]]
-    cmake-include: "PiPrecision.cmake"
+    cmake-include: "PiPrecision.cmake",
+    fast: true
 };
 
 import BenchmarkRunner from "../BenchmarkRunner.lf";
diff --git a/C/Savina/src/parallelism/RadixSort.lf b/C/Savina/src/parallelism/RadixSort.lf
index c5e3579..7fdaf8c 100644
--- a/C/Savina/src/parallelism/RadixSort.lf
+++ b/C/Savina/src/parallelism/RadixSort.lf
@@ -22,7 +22,8 @@ target C {
     ]]] */
     threading: false,
     /// [[[end]]]
-    files: "../include/PseudoRandom.h"
+    files: "../include/PseudoRandom.h",
+    fast: true
 };
 
 import BenchmarkRunner from "../BenchmarkRunner.lf";
diff --git a/C/Savina/src/parallelism/Trapezoidal.lf b/C/Savina/src/parallelism/Trapezoidal.lf
index 453330e..932bf87 100644
--- a/C/Savina/src/parallelism/Trapezoidal.lf
+++ b/C/Savina/src/parallelism/Trapezoidal.lf
@@ -24,7 +24,8 @@ target C {
     ]]] */
     threading: false,
     /// [[[end]]]
-    flags: "-lm"
+    flags: "-lm",
+    fast: true
 };
 
 import BenchmarkRunner from "../BenchmarkRunner.lf";