diff --git a/src/RMHD_converter.cpp b/src/RMHD_converter.cpp
index 0b1a6378654a703621717a215e8b5d26f2c01537..ca8b9566ade160fedc04125338dd1c9cebb5eb5b 100644
--- a/src/RMHD_converter.cpp
+++ b/src/RMHD_converter.cpp
@@ -1,5 +1,6 @@
 #include "RMHD_converter.hpp"
 #include <string>
+#include <iostream>
 
 extern int myrank, nprocs;
 
@@ -52,6 +53,7 @@ RMHD_converter::RMHD_converter(
     }
     int n[7];
 
+    proc_print_err_message("aloha 00");
     // first 3 arguments are dimensions for input array
     // i.e. actual dimensions for the Fourier representation.
     // NOT real space grid dimensions
@@ -62,6 +64,7 @@ RMHD_converter::RMHD_converter(
     n[1] = n2;
     this->f0c = new field_descriptor(2, n, MPI_COMPLEX8, MPI_COMM_WORLD);
 
+    proc_print_err_message("aloha 01");
     // f1c will be pointing at the input array after it has been
     // transposed in 2D, therefore we have this correspondence:
     // f0c->sizes[0] = f1c->sizes[1]*f1c->sizes[2]
@@ -70,18 +73,21 @@ RMHD_converter::RMHD_converter(
     n[2] = n1;
     this->f1c = new field_descriptor(3, n, MPI_COMPLEX8, MPI_COMM_WORLD);
 
+    proc_print_err_message("aloha 02");
     // the description for the fully transposed field
     n[0] = n2;
     n[1] = n1;
     n[2] = n0;
     this->f2c = new field_descriptor(3, n, MPI_COMPLEX8, MPI_COMM_WORLD);
 
+    proc_print_err_message("aloha 03");
     // following 3 arguments are dimensions for real space grid dimensions
     // f3r and f3c will be allocated in this call
     fftwf_get_descriptors_3D(
             N0, N1, N2,
             &this->f3r, &this->f3c);
 
+    proc_print_err_message("aloha 04");
     //allocate fields
     this->c0  = fftwf_alloc_complex(this->f0c->local_size);
     this->c12 = fftwf_alloc_complex(this->f1c->local_size);
@@ -89,6 +95,7 @@ RMHD_converter::RMHD_converter(
     // 4 instead of 2, because we have 2 fields to write
     this->r3  = fftwf_alloc_real( 4*this->f3c->local_size);
 
+    proc_print_err_message("aloha 05");
     // allocate plans
     this->complex2real0 = fftwf_mpi_plan_dft_c2r_3d(
             f3r->sizes[0], f3r->sizes[1], f3r->sizes[2],
@@ -101,20 +108,24 @@ RMHD_converter::RMHD_converter(
             MPI_COMM_WORLD,
             FFTW_PATIENT);
 
+    proc_print_err_message("aloha 06");
     // various descriptions for the real data
     n[0] = N0*2;
     n[1] = N1;
     n[2] = N2;
     this->f4r = new field_descriptor(3, n, MPI_REAL4, MPI_COMM_WORLD);
+    proc_print_err_message("aloha 07");
     n[0] = N0/8;
     n[1] = N1/8;
     n[2] = N2/8;
     n[3] = 8*8*8*2;
     this->drcubbie = new field_descriptor(4, n, MPI_REAL4, MPI_COMM_WORLD);
+    proc_print_err_message("aloha 08");
     n[0] = (N0/8) * (N1/8) * (N2/8);
     n[1] = 8*8*8*2;
     this->dzcubbie = new field_descriptor(2, n, MPI_REAL4, MPI_COMM_WORLD);
 
+    proc_print_err_message("aloha 09");
     //set up output file descriptor
     int out_rank, out_nprocs;
     out_nprocs = nprocs/nfiles;
@@ -123,6 +134,7 @@ RMHD_converter::RMHD_converter(
     n[0] = ((N0/8) * (N1/8) * (N2/8)) / nfiles;
     n[1] = 8*8*8*2;
     MPI_Comm_split(MPI_COMM_WORLD, this->out_group, out_rank, &this->out_communicator);
+    proc_print_err_message("aloha 10");
     this->dout = new field_descriptor(2, n, MPI_REAL4, this->out_communicator);
 }
 
diff --git a/src/fftwf_tools.cpp b/src/fftwf_tools.cpp
index 33b57d2914de449e1b04bd50ad612563fccba900..5dc37a06561a83f24a9974ea44b4c30df0c5268e 100644
--- a/src/fftwf_tools.cpp
+++ b/src/fftwf_tools.cpp
@@ -128,18 +128,18 @@ int fftwf_get_descriptors_3D(
         field_descriptor **fr,
         field_descriptor **fc)
 {
-    // I need to check whether there's already something there...
-    if (*fr != NULL) delete *fr;
-    if (*fc != NULL) delete *fc;
+    proc_print_err_message("fftwf_get_descriptors 00");
     int ntmp[3];
     ntmp[0] = n0;
     ntmp[1] = n1;
     ntmp[2] = n2;
     *fr = new field_descriptor(3, ntmp, MPI_REAL4, MPI_COMM_WORLD);
+    proc_print_err_message("fftwf_get_descriptors 01");
     ntmp[0] = n0;
     ntmp[1] = n1;
     ntmp[2] = n2/2+1;
     *fc = new field_descriptor(3, ntmp, MPI_COMPLEX8, MPI_COMM_WORLD);
+    proc_print_err_message("fftwf_get_descriptors 02");
     return EXIT_SUCCESS;
 }
 
diff --git a/src/field_descriptor.cpp b/src/field_descriptor.cpp
index 225f7affb3776896723a71e4cdfd5e8343f166d4..a11e81df97eedb3f233606e4cda32d12b2c64059 100644
--- a/src/field_descriptor.cpp
+++ b/src/field_descriptor.cpp
@@ -3,6 +3,8 @@
 #include <iostream>
 #include "field_descriptor.hpp"
 
+extern int myrank, nprocs;
+
 field_descriptor::field_descriptor(
         int ndims,
         int *n,
@@ -233,3 +235,12 @@ field_descriptor* field_descriptor::get_transpose()
     return new field_descriptor(this->ndims, n, this->mpi_dtype, this->comm);
 }
 
+void proc_print_err_message(const char *message)
+{
+    for (int i = 0; i < nprocs; i++)
+    {
+        if (myrank == i)
+            std::cerr << i << " " << message << std::endl;
+        MPI_Barrier(MPI_COMM_WORLD);
+    }
+}
diff --git a/src/field_descriptor.hpp b/src/field_descriptor.hpp
index a4b37737865ebc0a81c75a8b8828de08ba5c8f42..b8e9c36c00cc8d09d4616613a47cbdbff2893fed 100644
--- a/src/field_descriptor.hpp
+++ b/src/field_descriptor.hpp
@@ -75,5 +75,7 @@ int fftwf_clip_zero_padding(
         field_descriptor *f,
         float *a);
 
+void proc_print_err_message(const char *message);
+
 #endif//FIELD_DESCRIPTOR
 
diff --git a/src/full.cpp b/src/full.cpp
index 9971bd9fcb93ac84ea00b9ece2eb391d294e330f..f3f77c43d92c188a17ba015f549980d51700d5c0 100644
--- a/src/full.cpp
+++ b/src/full.cpp
@@ -1,4 +1,5 @@
 #include "RMHD_converter.hpp"
+#include <iostream>
 
 int myrank, nprocs;
 
@@ -9,11 +10,16 @@ int main(int argc, char *argv[])
     MPI_Comm_size(MPI_COMM_WORLD, &nprocs);
 
     RMHD_converter *bla = new RMHD_converter(
-            atoi(argv[1]), atoi(argv[2]), atoi(argv[3]),
-            atoi(argv[4]), atoi(argv[5]), atoi(argv[6]),
-            2);
+            (1364/2+1), 1364, 1364,
+            2048, 2048, 2048,
+            64);
 
-    bla->convert("Kdata0", "Kdata1", "Rdata");
+    bla->convert("K138000QNP002",
+                 "K138000QNP003",
+                 "U138000");
+    bla->convert("K138000QNP005",
+                 "K138000QNP006",
+                 "B138000");
     delete bla;
 
     // clean up