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Add predefined datatypes for FP8 formats #5882

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8 changes: 8 additions & 0 deletions c++/src/H5PredType.cpp
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Expand Up @@ -154,6 +154,8 @@ PredType *PredType::IEEE_F64LE_;

PredType *PredType::FLOAT_BFLOAT16BE_;
PredType *PredType::FLOAT_BFLOAT16LE_;
PredType *PredType::FLOAT_F8E4M3_;
PredType *PredType::FLOAT_F8E5M2_;

PredType *PredType::UNIX_D32BE_;
PredType *PredType::UNIX_D32LE_;
Expand Down Expand Up @@ -344,6 +346,8 @@ PredType::makePredTypes()

FLOAT_BFLOAT16BE_ = new PredType(H5T_FLOAT_BFLOAT16BE);
FLOAT_BFLOAT16LE_ = new PredType(H5T_FLOAT_BFLOAT16LE);
FLOAT_F8E4M3_ = new PredType(H5T_FLOAT_F8E4M3);
FLOAT_F8E5M2_ = new PredType(H5T_FLOAT_F8E5M2);

UNIX_D32BE_ = new PredType(H5T_UNIX_D32BE);
UNIX_D32LE_ = new PredType(H5T_UNIX_D32LE);
Expand Down Expand Up @@ -500,6 +504,8 @@ PredType::deleteConstants()

delete FLOAT_BFLOAT16BE_;
delete FLOAT_BFLOAT16LE_;
delete FLOAT_F8E4M3_;
delete FLOAT_F8E5M2_;

delete UNIX_D32BE_;
delete UNIX_D32LE_;
Expand Down Expand Up @@ -660,6 +666,8 @@ const PredType &PredType::IEEE_F64LE = *IEEE_F64LE_;

const PredType &PredType::FLOAT_BFLOAT16BE = *FLOAT_BFLOAT16BE_;
const PredType &PredType::FLOAT_BFLOAT16LE = *FLOAT_BFLOAT16LE_;
const PredType &PredType::FLOAT_F8E4M3 = *FLOAT_F8E4M3_;
const PredType &PredType::FLOAT_F8E5M2 = *FLOAT_F8E5M2_;

const PredType &PredType::UNIX_D32BE = *UNIX_D32BE_;
const PredType &PredType::UNIX_D32LE = *UNIX_D32LE_;
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4 changes: 4 additions & 0 deletions c++/src/H5PredType.h
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Expand Up @@ -94,6 +94,8 @@ class H5CPP_DLL PredType : public AtomType {

static const PredType &FLOAT_BFLOAT16BE;
static const PredType &FLOAT_BFLOAT16LE;
static const PredType &FLOAT_F8E4M3;
static const PredType &FLOAT_F8E5M2;

static const PredType &UNIX_D32BE;
static const PredType &UNIX_D32LE;
Expand Down Expand Up @@ -267,6 +269,8 @@ class H5CPP_DLL PredType : public AtomType {

static PredType *FLOAT_BFLOAT16BE_;
static PredType *FLOAT_BFLOAT16LE_;
static PredType *FLOAT_F8E4M3_;
static PredType *FLOAT_F8E5M2_;

static PredType *UNIX_D32BE_;
static PredType *UNIX_D32LE_;
Expand Down
1 change: 1 addition & 0 deletions doxygen/dox/DDLBNF200.dox
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Expand Up @@ -100,6 +100,7 @@ This section contains a brief explanation of the symbols used in the DDL.
H5T_IEEE_F32BE | H5T_IEEE_F32LE |
H5T_IEEE_F64BE | H5T_IEEE_F64LE |
H5T_FLOAT_BFLOAT16BE | H5T_FLOAT_BFLOAT16LE |
H5T_FLOAT_F8E4M3 | H5T_FLOAT_F8E5M2 |
H5T_NATIVE_FLOAT16 | H5T_NATIVE_FLOAT |
H5T_NATIVE_DOUBLE | H5T_NATIVE_LDOUBLE

Expand Down
8 changes: 8 additions & 0 deletions doxygen/examples/tables/predefinedDatatypes.dox
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Expand Up @@ -50,6 +50,14 @@
<td>#H5T_FLOAT_BFLOAT16LE</td>
<td>16-bit little-endian bfloat16 floating point</td>
</tr>
<tr>
<td>#H5T_FLOAT_F8E4M3</td>
<td>8-bit FP8 E4M3 (4 exponent bits, 3 mantissa bits) floating point</td>
</tr>
<tr>
<td>#H5T_FLOAT_F8E5M2</td>
<td>8-bit FP8 E5M2 (5 exponent bits, 2 mantissa bits) floating point</td>
</tr>
</table>
//! [predefined_alt_float_datatypes_table]
*
Expand Down
4 changes: 4 additions & 0 deletions fortran/src/H5_f.c
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Expand Up @@ -253,6 +253,10 @@ h5init_types_c(hid_t_f *types, hid_t_f *floatingtypes, hid_t_f *integertypes)
return ret_value;
if ((floatingtypes[7] = (hid_t_f)H5Tcopy(H5T_FLOAT_BFLOAT16LE)) < 0)
return ret_value;
if ((floatingtypes[8] = (hid_t_f)H5Tcopy(H5T_FLOAT_F8E4M3)) < 0)
return ret_value;
if ((floatingtypes[9] = (hid_t_f)H5Tcopy(H5T_FLOAT_F8E5M2)) < 0)
return ret_value;

if ((integertypes[0] = (hid_t_f)H5Tcopy(H5T_STD_I8BE)) < 0)
return ret_value;
Expand Down
2 changes: 2 additions & 0 deletions fortran/src/H5_ff.F90
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Expand Up @@ -295,6 +295,8 @@ END FUNCTION h5init1_flags_c
H5T_IEEE_F16LE = floating_types(6)
H5T_FLOAT_BFLOAT16BE = floating_types(7)
H5T_FLOAT_BFLOAT16LE = floating_types(8)
H5T_FLOAT_F8E4M3 = floating_types(9)
H5T_FLOAT_F8E5M2 = floating_types(10)

H5T_STD_I8BE = integer_types(1)
H5T_STD_I8LE = integer_types(2)
Expand Down
6 changes: 5 additions & 1 deletion fortran/src/H5f90global.F90
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Expand Up @@ -63,7 +63,7 @@ MODULE H5GLOBAL
! Do not forget to change these values when new predefined
! datatypes are added
INTEGER, PARAMETER :: PREDEF_TYPES_LEN = 19
INTEGER, PARAMETER :: FLOATING_TYPES_LEN = 8
INTEGER, PARAMETER :: FLOATING_TYPES_LEN = 10
INTEGER, PARAMETER :: INTEGER_TYPES_LEN = 28

! These arrays need to be global because they are used in
Expand Down Expand Up @@ -91,6 +91,8 @@ MODULE H5GLOBAL
!DEC$ATTRIBUTES DLLEXPORT :: H5T_IEEE_F16LE
!DEC$ATTRIBUTES DLLEXPORT :: H5T_FLOAT_BFLOAT16BE
!DEC$ATTRIBUTES DLLEXPORT :: H5T_FLOAT_BFLOAT16LE
!DEC$ATTRIBUTES DLLEXPORT :: H5T_FLOAT_F8E4M3
!DEC$ATTRIBUTES DLLEXPORT :: H5T_FLOAT_F8E5M2
!DEC$ATTRIBUTES DLLEXPORT :: H5T_STD_I8BE
!DEC$ATTRIBUTES DLLEXPORT :: H5T_STD_I8LE
!DEC$ATTRIBUTES DLLEXPORT :: H5T_STD_I16BE
Expand Down Expand Up @@ -145,6 +147,8 @@ MODULE H5GLOBAL
INTEGER(HID_T) :: H5T_IEEE_F16LE !< H5T_IEEE_F16LE
INTEGER(HID_T) :: H5T_FLOAT_BFLOAT16BE !< H5T_FLOAT_BFLOAT16BE
INTEGER(HID_T) :: H5T_FLOAT_BFLOAT16LE !< H5T_FLOAT_BFLOAT16LE
INTEGER(HID_T) :: H5T_FLOAT_F8E4M3 !< H5T_FLOAT_F8E4M3
INTEGER(HID_T) :: H5T_FLOAT_F8E5M2 !< H5T_FLOAT_F8E5M2
INTEGER(HID_T) :: H5T_STD_I8BE !< H5T_STD_I8BE
INTEGER(HID_T) :: H5T_STD_I8LE !< H5T_STD_I8LE
INTEGER(HID_T) :: H5T_STD_I16BE !< H5T_STD_I16BE
Expand Down
6 changes: 6 additions & 0 deletions hl/src/H5LT.c
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Expand Up @@ -2311,6 +2311,12 @@ H5LT_dtype_to_text(hid_t dtype, char *dt_str, H5LT_lang_t lang, size_t *slen, bo
else if (H5Tequal(dtype, H5T_FLOAT_BFLOAT16LE)) {
snprintf(dt_str, *slen, "H5T_FLOAT_BFLOAT16LE");
}
else if (H5Tequal(dtype, H5T_FLOAT_F8E4M3)) {
snprintf(dt_str, *slen, "H5T_FLOAT_F8E4M3");
}
else if (H5Tequal(dtype, H5T_FLOAT_F8E5M2)) {
snprintf(dt_str, *slen, "H5T_FLOAT_F8E5M2");
}
#ifdef H5_HAVE__FLOAT16
else if (H5Tequal(dtype, H5T_NATIVE_FLOAT16)) {
snprintf(dt_str, *slen, "H5T_NATIVE_FLOAT16");
Expand Down
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