<p>One suggestion: comment out the line towards the top of lapw0.F </p>
<p> call W2kinit </p>
<p>You should get a more human readable error message. </p>
<p>As an addendum, was fftw3 compiled with mpiifort? I assume from your email that it was, just checking. </p>
<p>N.B., there is a small chance that this will hang your computer.</p>