diff --git a/test/C/test.c b/test/C/test.c
index bf3b02475eb8d4a47ecd2df3733eb26f9a8306f5..8e4eef515d657016bb7e2657536a8d4e9b4a35dd 100644
--- a/test/C/test.c
+++ b/test/C/test.c
@@ -135,8 +135,8 @@ int main(int argc, char** argv) {
      nev = atoi(argv[2]);
      nblk = atoi(argv[3]);
    } else {
-     na = 1000;
-     nev = 500;
+     na = 500;
+     nev = 250;
      nblk = 16;
    }
 
diff --git a/test/C/test_autotune.c b/test/C/test_autotune.c
index d02703b8005ba76bdf1098d3a046894260976f45..e5b6fae200c377eca13ede6c2741fba723f1e501 100644
--- a/test/C/test_autotune.c
+++ b/test/C/test_autotune.c
@@ -126,8 +126,8 @@ int main(int argc, char** argv) {
      nev = atoi(argv[2]);
      nblk = atoi(argv[3]);
    } else {
-     na = 1000;
-     nev = 500;
+     na = 500;
+     nev = 250;
      nblk = 16;
    }
 
diff --git a/test/Fortran/driver/legacy_interface/legacy_complex_driver.F90 b/test/Fortran/driver/legacy_interface/legacy_complex_driver.F90
index 640399752702bf3a3d7bfb694bd8d4f6f9722bd8..fab0ffbaef4fb3e231ab470c2afedbabade4ea1d 100644
--- a/test/Fortran/driver/legacy_interface/legacy_complex_driver.F90
+++ b/test/Fortran/driver/legacy_interface/legacy_complex_driver.F90
@@ -53,7 +53,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/Fortran/driver/legacy_interface/legacy_real_driver.F90 b/test/Fortran/driver/legacy_interface/legacy_real_driver.F90
index cdf5f151d5088f7760020f92535dd6bab1dce0ef..9950b642689b6b9e1d3550f899f97b01f6f3a5c6 100644
--- a/test/Fortran/driver/legacy_interface/legacy_real_driver.F90
+++ b/test/Fortran/driver/legacy_interface/legacy_real_driver.F90
@@ -53,7 +53,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/Fortran/driver/legacy_interface/legacy_single_complex_driver.F90 b/test/Fortran/driver/legacy_interface/legacy_single_complex_driver.F90
index 2f6f43dc6951167d4a3781af3884d8714adab25e..9d756cac538e11619000c2b250d1b133183fd91c 100644
--- a/test/Fortran/driver/legacy_interface/legacy_single_complex_driver.F90
+++ b/test/Fortran/driver/legacy_interface/legacy_single_complex_driver.F90
@@ -53,7 +53,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/Fortran/driver/legacy_interface/legacy_single_real_driver.F90 b/test/Fortran/driver/legacy_interface/legacy_single_real_driver.F90
index e9ce3e0c9cd821db63122e1f09844381e3b277b6..dddf1950a22796eb2f95cf33ac110d41b402cd21 100644
--- a/test/Fortran/driver/legacy_interface/legacy_single_real_driver.F90
+++ b/test/Fortran/driver/legacy_interface/legacy_single_real_driver.F90
@@ -53,7 +53,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/Fortran/elpa1/legacy_interface/legacy_complex.F90 b/test/Fortran/elpa1/legacy_interface/legacy_complex.F90
index fd0abdc4434ecdc64494735c65c2dc897aafe829..3715e012964c6a27880f4316d5d52af4c5317107 100644
--- a/test/Fortran/elpa1/legacy_interface/legacy_complex.F90
+++ b/test/Fortran/elpa1/legacy_interface/legacy_complex.F90
@@ -53,7 +53,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/Fortran/elpa1/legacy_interface/legacy_complex_gpu.F90 b/test/Fortran/elpa1/legacy_interface/legacy_complex_gpu.F90
index f7469bc7823921e8e59b1560d8eae0543bcd139a..2e406f89dab622a63cc9ec564f138e94022a9d67 100644
--- a/test/Fortran/elpa1/legacy_interface/legacy_complex_gpu.F90
+++ b/test/Fortran/elpa1/legacy_interface/legacy_complex_gpu.F90
@@ -53,7 +53,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/Fortran/elpa1/legacy_interface/legacy_real.F90 b/test/Fortran/elpa1/legacy_interface/legacy_real.F90
index 95c10539855329fcff961ffdd800db6f94a65390..e6226f7ab696a870abf02a4ab9f917e8ecba15ab 100644
--- a/test/Fortran/elpa1/legacy_interface/legacy_real.F90
+++ b/test/Fortran/elpa1/legacy_interface/legacy_real.F90
@@ -53,7 +53,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (5000, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/Fortran/elpa1/legacy_interface/legacy_real_gpu.F90 b/test/Fortran/elpa1/legacy_interface/legacy_real_gpu.F90
index 3d10792c1aa9db76e8e796b6fad811de0fe05ae3..473281aef3d4d92233902a09112e3864203b925e 100644
--- a/test/Fortran/elpa1/legacy_interface/legacy_real_gpu.F90
+++ b/test/Fortran/elpa1/legacy_interface/legacy_real_gpu.F90
@@ -53,7 +53,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/Fortran/elpa1/legacy_interface/legacy_single_complex.F90 b/test/Fortran/elpa1/legacy_interface/legacy_single_complex.F90
index 31646d25b17db31ba2e89c0a6c711672ae97ce84..63111ab40ad8728bdbf73c1e0e05c62b4474cd6a 100644
--- a/test/Fortran/elpa1/legacy_interface/legacy_single_complex.F90
+++ b/test/Fortran/elpa1/legacy_interface/legacy_single_complex.F90
@@ -53,7 +53,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/Fortran/elpa1/legacy_interface/legacy_single_complex_gpu.F90 b/test/Fortran/elpa1/legacy_interface/legacy_single_complex_gpu.F90
index b345718e309a2c47d64a6bcd6f6fe0019a2b3e6c..9951d268b236fbb460d7e308b7e608b144187a05 100644
--- a/test/Fortran/elpa1/legacy_interface/legacy_single_complex_gpu.F90
+++ b/test/Fortran/elpa1/legacy_interface/legacy_single_complex_gpu.F90
@@ -53,7 +53,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/Fortran/elpa1/legacy_interface/legacy_single_real.F90 b/test/Fortran/elpa1/legacy_interface/legacy_single_real.F90
index b58b696dabeacb5067bf49a4510fa604d1e64383..e6dc0f76d72617d7f2bbe6cbc9347174e1cc3a5d 100644
--- a/test/Fortran/elpa1/legacy_interface/legacy_single_real.F90
+++ b/test/Fortran/elpa1/legacy_interface/legacy_single_real.F90
@@ -53,7 +53,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/Fortran/elpa1/legacy_interface/legacy_single_real_gpu.F90 b/test/Fortran/elpa1/legacy_interface/legacy_single_real_gpu.F90
index 832805146fabe6909cfdcecd76aa6c66e0ab2352..28a4f6d1d09367b876024d3b1719f41214777351 100644
--- a/test/Fortran/elpa1/legacy_interface/legacy_single_real_gpu.F90
+++ b/test/Fortran/elpa1/legacy_interface/legacy_single_real_gpu.F90
@@ -53,7 +53,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/Fortran/elpa2/complex_2stage_banded.F90 b/test/Fortran/elpa2/complex_2stage_banded.F90
index 13c9f961223f1a6ac878a1e7b08c395f828c4a72..0abcce355606e43467b1970d06b77ff796f7cdcb 100644
--- a/test/Fortran/elpa2/complex_2stage_banded.F90
+++ b/test/Fortran/elpa2/complex_2stage_banded.F90
@@ -54,7 +54,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/Fortran/elpa2/legacy_interface/legacy_complex.F90 b/test/Fortran/elpa2/legacy_interface/legacy_complex.F90
index fbc5c747d8a8adc7b17ec98127ebd4d2cd9fe681..3bbcbb0a2eee0b1e59d7b7e9ef4ad5bc08722dbb 100644
--- a/test/Fortran/elpa2/legacy_interface/legacy_complex.F90
+++ b/test/Fortran/elpa2/legacy_interface/legacy_complex.F90
@@ -53,7 +53,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/Fortran/elpa2/legacy_interface/legacy_complex_api.F90 b/test/Fortran/elpa2/legacy_interface/legacy_complex_api.F90
index 5bb7f0f8f9567d82301285d160cbd49b98c9ab40..8cb0049eaa8de782c677a6e8eb11833e5bfbf15b 100644
--- a/test/Fortran/elpa2/legacy_interface/legacy_complex_api.F90
+++ b/test/Fortran/elpa2/legacy_interface/legacy_complex_api.F90
@@ -53,7 +53,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/Fortran/elpa2/legacy_interface/legacy_complex_default_kernel.F90 b/test/Fortran/elpa2/legacy_interface/legacy_complex_default_kernel.F90
index c054b3e125ff8eeb71616443d5f50a91f9465c7d..8307b582e39f7c16e16b776069a87a4d2729235d 100644
--- a/test/Fortran/elpa2/legacy_interface/legacy_complex_default_kernel.F90
+++ b/test/Fortran/elpa2/legacy_interface/legacy_complex_default_kernel.F90
@@ -53,7 +53,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/Fortran/elpa2/legacy_interface/legacy_complex_gpu.F90 b/test/Fortran/elpa2/legacy_interface/legacy_complex_gpu.F90
index 2fc67523ef907bc7c3e9ec0b440d68dec9999a82..74c5c4e1ebc98810ff9aaeff2dddfdd9f9b41ad1 100644
--- a/test/Fortran/elpa2/legacy_interface/legacy_complex_gpu.F90
+++ b/test/Fortran/elpa2/legacy_interface/legacy_complex_gpu.F90
@@ -53,7 +53,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/Fortran/elpa2/legacy_interface/legacy_real.F90 b/test/Fortran/elpa2/legacy_interface/legacy_real.F90
index f06bff4e984ead977354a75c2c032c58516de9b1..81d49d7a8c76de36f7d5699fa623100ae20c0f01 100644
--- a/test/Fortran/elpa2/legacy_interface/legacy_real.F90
+++ b/test/Fortran/elpa2/legacy_interface/legacy_real.F90
@@ -53,7 +53,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/Fortran/elpa2/legacy_interface/legacy_real_api.F90 b/test/Fortran/elpa2/legacy_interface/legacy_real_api.F90
index b7c9d100c4e41840abeafda87d477855f02fee90..4e14e74bc2e3ab328127ea5223b41845bc08a864 100644
--- a/test/Fortran/elpa2/legacy_interface/legacy_real_api.F90
+++ b/test/Fortran/elpa2/legacy_interface/legacy_real_api.F90
@@ -53,7 +53,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/Fortran/elpa2/legacy_interface/legacy_real_default_kernel.F90 b/test/Fortran/elpa2/legacy_interface/legacy_real_default_kernel.F90
index da033fb48d9238907810bf22c23e8b4a4836a12d..4feedcba0c40033d0558d8e9a48283dd871bcdac 100644
--- a/test/Fortran/elpa2/legacy_interface/legacy_real_default_kernel.F90
+++ b/test/Fortran/elpa2/legacy_interface/legacy_real_default_kernel.F90
@@ -53,7 +53,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/Fortran/elpa2/legacy_interface/legacy_real_gpu.F90 b/test/Fortran/elpa2/legacy_interface/legacy_real_gpu.F90
index 7767473b9b7544043d4ff5605f5b62088797126a..31c4ac3cb8772bfa3b4502353c84547f44f65f9d 100644
--- a/test/Fortran/elpa2/legacy_interface/legacy_real_gpu.F90
+++ b/test/Fortran/elpa2/legacy_interface/legacy_real_gpu.F90
@@ -53,7 +53,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/Fortran/elpa2/legacy_interface/legacy_real_qr.F90 b/test/Fortran/elpa2/legacy_interface/legacy_real_qr.F90
index 5625736c9c661da57dad41f1d2f82cb7c2ff8128..4503282fdef1f3073a33a87f578ca6d1909bb28d 100644
--- a/test/Fortran/elpa2/legacy_interface/legacy_real_qr.F90
+++ b/test/Fortran/elpa2/legacy_interface/legacy_real_qr.F90
@@ -53,7 +53,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
@@ -141,8 +141,8 @@ program test_real2_default_kernel_qr_decomposition_double_precision
 !   endif
 
 !   nblk = 2
-!   na   = 4000
-!   nev  = 1500
+!   na   = 500
+!   nev  = 150
 
 !   ! make sure na, nbl is even
 !   if (mod(nblk,2 ) .ne. 0) then
diff --git a/test/Fortran/elpa2/legacy_interface/legacy_single_complex.F90 b/test/Fortran/elpa2/legacy_interface/legacy_single_complex.F90
index 1c07973055e50ffdb28f458ee64f2cebcbd6e54c..bbf9d2d5216cca2c9b77d4730ab8c36bbeb4005d 100644
--- a/test/Fortran/elpa2/legacy_interface/legacy_single_complex.F90
+++ b/test/Fortran/elpa2/legacy_interface/legacy_single_complex.F90
@@ -53,7 +53,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/Fortran/elpa2/legacy_interface/legacy_single_complex_api.F90 b/test/Fortran/elpa2/legacy_interface/legacy_single_complex_api.F90
index 9e15fce82337038cd7d22f80597da29d3ac9ce00..2265111b397280ac78b279eda6adf334794b5449 100644
--- a/test/Fortran/elpa2/legacy_interface/legacy_single_complex_api.F90
+++ b/test/Fortran/elpa2/legacy_interface/legacy_single_complex_api.F90
@@ -53,7 +53,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/Fortran/elpa2/legacy_interface/legacy_single_complex_default_kernel.F90 b/test/Fortran/elpa2/legacy_interface/legacy_single_complex_default_kernel.F90
index 5c8e95ae191a531afb7cf33ddb7435856a4ce76c..62b794a3393a6e7974c42b2d0c3e6e31492a46f8 100644
--- a/test/Fortran/elpa2/legacy_interface/legacy_single_complex_default_kernel.F90
+++ b/test/Fortran/elpa2/legacy_interface/legacy_single_complex_default_kernel.F90
@@ -53,7 +53,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/Fortran/elpa2/legacy_interface/legacy_single_complex_gpu.F90 b/test/Fortran/elpa2/legacy_interface/legacy_single_complex_gpu.F90
index 6b97c986ab92ecc5cbe242b00bfdffd37da91e05..445f8867de90022ab25d2336b5042a08c39df6a6 100644
--- a/test/Fortran/elpa2/legacy_interface/legacy_single_complex_gpu.F90
+++ b/test/Fortran/elpa2/legacy_interface/legacy_single_complex_gpu.F90
@@ -53,7 +53,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/Fortran/elpa2/legacy_interface/legacy_single_real.F90 b/test/Fortran/elpa2/legacy_interface/legacy_single_real.F90
index ada13b31c5be30c4c9dceb83e8e6024defdbf195..3a2974163f9beddad430158608686df846e30b16 100644
--- a/test/Fortran/elpa2/legacy_interface/legacy_single_real.F90
+++ b/test/Fortran/elpa2/legacy_interface/legacy_single_real.F90
@@ -53,7 +53,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/Fortran/elpa2/legacy_interface/legacy_single_real_api.F90 b/test/Fortran/elpa2/legacy_interface/legacy_single_real_api.F90
index 2facbde610e99b903c00d7a839382d8064eb4335..bf9c5e1349753138eb634af76dd9af494dfe4db3 100644
--- a/test/Fortran/elpa2/legacy_interface/legacy_single_real_api.F90
+++ b/test/Fortran/elpa2/legacy_interface/legacy_single_real_api.F90
@@ -53,7 +53,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/Fortran/elpa2/legacy_interface/legacy_single_real_default_kernel.F90 b/test/Fortran/elpa2/legacy_interface/legacy_single_real_default_kernel.F90
index 98f9d03c4b51c65c9aca54fe9aa56473cca54993..26fa7dfee6bc57649367e0fac804064e4f653e47 100644
--- a/test/Fortran/elpa2/legacy_interface/legacy_single_real_default_kernel.F90
+++ b/test/Fortran/elpa2/legacy_interface/legacy_single_real_default_kernel.F90
@@ -53,7 +53,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/Fortran/elpa2/legacy_interface/legacy_single_real_gpu.F90 b/test/Fortran/elpa2/legacy_interface/legacy_single_real_gpu.F90
index 3e64222ce6bacbfef2e61cba911ed0c87866e067..8822e13a667047f5a0f8c513701e65202018fe71 100644
--- a/test/Fortran/elpa2/legacy_interface/legacy_single_real_gpu.F90
+++ b/test/Fortran/elpa2/legacy_interface/legacy_single_real_gpu.F90
@@ -53,7 +53,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/Fortran/elpa2/legacy_interface/legacy_single_real_qr.F90 b/test/Fortran/elpa2/legacy_interface/legacy_single_real_qr.F90
index 2739097f5a28692d716ef9fa6ca511468439a5b1..82cf9670d38f806813a7a54e4418f3817d588cea 100644
--- a/test/Fortran/elpa2/legacy_interface/legacy_single_real_qr.F90
+++ b/test/Fortran/elpa2/legacy_interface/legacy_single_real_qr.F90
@@ -53,7 +53,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
@@ -143,11 +143,11 @@ program test_real2_default_kernel_qr_decomposition_single_precision
 
 !   ! override nblk
 !      nblk = 2
-!      na   = 4000
-!      nev  = 1500
+!      na   = 500
+!      nev  = 150
 !!       nblk = 32
-!   !   na   = 4000
-!   !   nev  = 1500
+!   !   na   = 500
+!   !   nev  = 150
 !
 !   ! make sure na, nbl is even
 !   if (mod(nblk,2 ) .ne. 0) then
diff --git a/test/Fortran/elpa2/real_2stage_banded.F90 b/test/Fortran/elpa2/real_2stage_banded.F90
index a72d6b885bb00d4ef204fe6a8eae2020689ed5ae..32dd6f8e20e51a566d15d57c93f06d6854d66049 100644
--- a/test/Fortran/elpa2/real_2stage_banded.F90
+++ b/test/Fortran/elpa2/real_2stage_banded.F90
@@ -54,7 +54,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/Fortran/elpa2/single_complex_2stage_banded.F90 b/test/Fortran/elpa2/single_complex_2stage_banded.F90
index b9913a6209a53623bc6869d10a6834bed8916cf8..3a337216cf960e054291e66c1fe39d0c08963791 100644
--- a/test/Fortran/elpa2/single_complex_2stage_banded.F90
+++ b/test/Fortran/elpa2/single_complex_2stage_banded.F90
@@ -54,7 +54,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/Fortran/elpa2/single_real_2stage_banded.F90 b/test/Fortran/elpa2/single_real_2stage_banded.F90
index 7b4b2ff22bd55c68597e5c401f50447a1fdc6d7e..33544fe789f0ac11789a5943527be152117ec48e 100644
--- a/test/Fortran/elpa2/single_real_2stage_banded.F90
+++ b/test/Fortran/elpa2/single_real_2stage_banded.F90
@@ -54,7 +54,7 @@
 !> By calling executable [arg1] [arg2] [arg3] [arg4]
 !> one can define the size (arg1), the number of
 !> Eigenvectors to compute (arg2), and the blocking (arg3).
-!> If these values are not set default values (4000, 1500, 16)
+!> If these values are not set default values (500, 150, 16)
 !> are choosen.
 !> If these values are set the 4th argument can be
 !> "output", which specifies that the EV's are written to
diff --git a/test/shared/test_read_input_parameters.F90 b/test/shared/test_read_input_parameters.F90
index 9281e7947c6a2dbe070b94a3e369425c10b3a94e..82edf44deb138088ea9fc0fe4361c7172abeebb0 100644
--- a/test/shared/test_read_input_parameters.F90
+++ b/test/shared/test_read_input_parameters.F90
@@ -215,8 +215,8 @@ module test_read_input_parameters
 
       ! default parameters
       input_options%datatype = 1
-      input_options%na = 4000
-      input_options%nev = 1500
+      input_options%na = 500
+      input_options%nev = 150
       input_options%nblk = 16
 
       input_options%write_to_file%eigenvectors = .false.
@@ -350,8 +350,8 @@ module test_read_input_parameters
       integer(kind=ik)              :: mpierr
 
       ! default parameters
-      na = 4000
-      nev = 1500
+      na = 5000
+      nev = 150
       nblk = 16
       write_to_file%eigenvectors = .false.
       write_to_file%eigenvalues  = .false.