z = (ZOOM_connection *) xmalloc(sizeof(*z) * parameters.concurrent);
r = (ZOOM_resultset *) xmalloc(sizeof(*r) * parameters.concurrent);
elc = (int *) xmalloc(sizeof(*elc) * parameters.concurrent * parameters.repeat);
z = (ZOOM_connection *) xmalloc(sizeof(*z) * parameters.concurrent);
r = (ZOOM_resultset *) xmalloc(sizeof(*r) * parameters.concurrent);
elc = (int *) xmalloc(sizeof(*elc) * parameters.concurrent * parameters.repeat);