| Cray X1TM User Environment Differences - S-2310-51 | ||
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The utility library, which contains the flexible file I/O and numeric conversion routines, includes the following routines:
Flexible file I/O (FFIO) routines used by Fortran and C (as described in the intro_ffio(3f) man page).
Conversion routines for the assign command (as described in the assign(1) man page).
Formatted conversion routines for Fortran and C (as described in the intro_conversion(3f) man page).
Miscellaneous support routines for Fortran and C (as described in the intro_io(3f), man page).
Routines from Cray SV1 series systems for portability:
Search routines
First- and Second-order Linear Recurrence routines
The majority of FFIO layers are available on Cray X1 systems, with the following exceptions:
bmx or tape
c205
cdc
nosve
sds
Table 4-14 lists the numeric conversion routines that Cray X1 systems support. Some routines that support conversion to older Cray systems are not listed. The unsupported numeric conversion routines convert:
Between Control Data Corporation (CDC) and Cray SV1 series system formats (Table 4-15)
Between IBM and Cray SV1 series system formats (Table 4-16)
Between VAX/VMS and Cray SV1 series systems (Table 4-17)
Table 4-14. Supported Cray X1 Numeric Conversion Routines
Name | Purpose |
|---|---|
IEG2IBM and IBM2IEG | Converts between generic IEEE data types and IBM data types. |
CRY2IEG and IEG2CRY | Converts between Cray SV1 series systems Fortran data types and generic IEEE data types. |
IEG2IEU and IEU2IEG | Converts between generic IEEE data types and Ultrix style little-endian IEEE data types. |
IEG2VAX and VAX2IEG | Converts between generic IEEE data types and VAX Fortran data types. |
CRI2IEG and IEG2CRI | Converts between Cray T90 system IEEE data types and generic IEEE data types. |
MPP2IEG and IEG2MIPS | Converts between Cray T3E system data types and generic IEEE data types. |
MIPS2IEG and IEG2MIPS | Converts between MIPS data types and generic IEEE data types. |
IA2IEG and IEG2IA | Converts between Intel data types and generic IEEE data types. |
Table 4-15. Unsupported CDC Conversion Routines
Name | Purpose |
|---|---|
CRAY2CDC and CDC2CRAY | Converts between CDC data and Cray SV1 series systems data types. |
CRAY2ETA and ETA2CRAY | Converts between ETA/CYBER205 data and Cray SV1 series systems data types. |
CRAY2NVE and NVE2CRAY | Converts between NOS/VE data and Cray SV1 series systems data types. |
P6460 and U6064 | Packs or unpacks 60-bit words into or from Cray SV1 series systems 64-bit words. |
ASCDC and DSASC | Converts between CDC display code characters and ASCII characters. |
FP6064 and FP6460 | Converts between CDC 60-bit and Cray SV1 series systems 64-bit numbers. |
INT6064 and INT6460 | Converts between CDC 60-bit integers and Cray SV1 series systems 64-bit integers. |
Table 4-16. Unsupported IBM Conversion Routines
Name | Purpose |
|---|---|
CRAY2IBD and IBD2CRAY | Converts between IBM and Cray SV1 series systems. Single and double floating-point values are both treated as 64 bits. |
CRAY2IBM and IBM2CRAY | Converts between IBM and Cray SV1 series systems data types. |
P32 and U32 | Packs and unpacks 32-bit items from 64-bit items. |
USDCTC | Converts IBM 64-bit floating-point to Cray SV1 series systems real data type. |
USDCTI | Converts Cray SV1 series systems real data type to IBM 64-bit floating point. |
USICTC | Converts an IBM 2-byte or 4-byte integer to a Cray SV1 series systems 8-byte integer. |
USICTI | Converts a Cray SV1 series systems 8-byte integer to an IBM 2-byte or 4-byte integer. |
USICTP | Converts a Cray SV1 series systems integer to an IBM packed decimal. |
USLCTC | Converts an IBM 1-byte or IBM 4-byte logical to a Cray SV1 series systems 8-byte logical. |
USLCTI | Converts a Cray SV1 series systems 8-byte logical to an IBM 1-byte or IBM 4-byte logical. |
USPCTC | Converts an IBM pack decimal to a 64-bit integer. |
USSCTC | Converts two IBM (32-bit) single precision reals, packed two per Cray SV1 series systems 64-bit word, into two Cray SV1 series systems single precision (64-bit) floating-point variables. |
USSCTI | Converts two Cray SV1 series systems single precision values (64-bits each) into two IBM single precision values (32-bits each) packed in a Cray SV1 series systems 64-bit word. |
Table 4-17. Unsupported VAX/VMS Conversion Routines
Name | Purpose |
|---|---|
VAX2CRAY and CRAY2VAX | Converts between Cray SV1 series systems data types and VAX/VMS data types. |
VXBCTI and VXBCTC | Converts between Cray SV1 series systems non-IEEE double precision numbers and VAX 64-bit D format values. |
VXDCTC and VXDCTI | Converts between Cray SV1 series systems non-IEEE single precision numbers and VAX 64-bit D format values. |
VXGCTC and VXGCTI | Converts between Cray SV1 series systems non-IEEE single precision numbers and VAX 64-bit G format values. |
VXICTC and VXITI | Converts between Cray SV1 series systems 64-bit integers and VAX 16-bit and 32-bit integers. |
VXLCTC and VXLCTI | Converts between Cray SV1 series systems 64-bit logical values and VAX logical values. |
VXSCTC and VXSCTI | Converts between Cray SV1 series systems non-IEEE single precision numbers and VAX 32-bit F format values. |
VXZCTC and VXZCTI | Converts between Cray SV1 series systems non-IEEE complex single precision numbers and VAX 64-bit D format complex values. |
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