/*********************************************************************
*
*  File Name: crayx1.h
*
*  Functional Description: The header file crayx1.h defines macros
*      used by FORTRAN code on the CRAY-X1 when implementing
*      the bench11 multiple precision benchmark routines.
*
*********************************************************************/
/* CVS info   */
/* $Date: 2005/01/10 21:05:28 $     */
/* $Revision: 1.2 $ */
/* $RCSfile: crayx1.h,v $  */
/* $Name: rel_5 $     */

// On the X1, the long type is the largest supported type.

#define mplong		long
#define MPLONG		INTEGER(kind=8)

// The total number of bits in an MPLONG
#define WORDLEN		64

// Fudge factor for MPI transfers SEND/RECV/GATHER in P11,C11,R11
// It should be WORDLEN/(default bits per int)
#define intspermplong	2

// The number of bits in each digit word used by the multiple
// precision structure (normally WORDLEN/2).
#ifdef GMP
# define BITSPERWORD	64
  // This flag means that GMP is compiled with 32-bit ints
# define INT32		1
#else
# define BITSPERWORD	32
#endif

/* The number of usable bits in the mantissa of a double
 * (Look in the file /usr/include/float.h)
 * Also define a fudge factor so that for any values of rem and div:
 *    floor(rem/div) > int(float(rem-DIVFUDGE*2^stuff)/float(div))
 *    where float(x) is the double precision representation
 *    of the top DBL_MANT_DIG-1 bits of x and stuff is chosen so
 *    DIVFUDGE effects only the bottom bits of those chosen by float.
 */
#define DBL_MANT_DIG	53
#define DIVFUDGE	2

// There are 64 bits in an INTEGER on the T3D/E. This is important
// because many functions return an INTEGER, not an MPLONG
#define INTEGER_BITS	64

#define VECTLEN		64

// Define a string containing a single backslash
#define BACKSLASH "\\"