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Add predefined datatypes for bfloat16 data (#5402)

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Adds predefined datatypes for little- and big-endian bfloat16 data

Does not add support for any native bfloat16 types; datatype conversions are performed in software

Also adds missing float16 predefined types to fortran
This commit is contained in:
jhendersonHDF
2025-09-26 13:33:56 -05:00
committed by GitHub
parent 29c847a43d
commit 748875a7d7
48 changed files with 2820 additions and 831 deletions
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java/src/hdf/hdf5lib/HDF5Constants.java
+8
View File
@@ -1121,6 +1121,10 @@ public class HDF5Constants {
/** */
public static final long H5T_IEEE_F64LE = H5T_IEEE_F64LE();
/** */
public static final long H5T_FLOAT_BFLOAT16BE = H5T_FLOAT_BFLOAT16BE();
/** */
public static final long H5T_FLOAT_BFLOAT16LE = H5T_FLOAT_BFLOAT16LE();
/** */
public static final int H5T_INTEGER = H5T_INTEGER();
/** */
public static final long H5T_INTEL_B16 = H5T_INTEL_B16();
@@ -2632,6 +2636,10 @@ public class HDF5Constants {
private static native final long H5T_IEEE_F64LE();
private static native final long H5T_FLOAT_BFLOAT16BE();
private static native final long H5T_FLOAT_BFLOAT16LE();
private static native final int H5T_INTEGER();
private static native final long H5T_INTEL_B16();
java/src/jni/h5Constants.c
+10
View File
@@ -2736,6 +2736,16 @@ Java_hdf_hdf5lib_HDF5Constants_H5T_1IEEE_1F64LE(JNIEnv *env, jclass cls)
{
return H5T_IEEE_F64LE;
}
JNIEXPORT jlong JNICALL
Java_hdf_hdf5lib_HDF5Constants_H5T_1FLOAT_1BFLOAT16BE(JNIEnv *env, jclass cls)
{
return H5T_FLOAT_BFLOAT16BE;
}
JNIEXPORT jlong JNICALL
Java_hdf_hdf5lib_HDF5Constants_H5T_1FLOAT_1BFLOAT16LE(JNIEnv *env, jclass cls)
{
return H5T_FLOAT_BFLOAT16LE;
}
JNIEXPORT jint JNICALL
Java_hdf_hdf5lib_HDF5Constants_H5T_1INTEGER(JNIEnv *env, jclass cls)
{
java/src/jni/h5util.c
+14 -4
View File
@@ -2166,8 +2166,13 @@ h5str_get_little_endian_type(hid_t tid)
}
case H5T_FLOAT: {
if (size == 2)
p_type = H5Tcopy(H5T_IEEE_F16LE);
if (size == 2) {
if (true == H5Tequal(tid, H5T_IEEE_F16LE) || true == H5Tequal(tid, H5T_IEEE_F16BE))
p_type = H5Tcopy(H5T_IEEE_F16LE);
else if (true == H5Tequal(tid, H5T_FLOAT_BFLOAT16LE) ||
true == H5Tequal(tid, H5T_FLOAT_BFLOAT16BE))
p_type = H5Tcopy(H5T_FLOAT_BFLOAT16LE);
}
else if (size == 4)
p_type = H5Tcopy(H5T_IEEE_F32LE);
else if (size == 8)
@@ -2273,8 +2278,13 @@ h5str_get_big_endian_type(hid_t tid)
}
case H5T_FLOAT: {
if (size == 2)
p_type = H5Tcopy(H5T_IEEE_F16BE);
if (size == 2) {
if (true == H5Tequal(tid, H5T_IEEE_F16LE) || true == H5Tequal(tid, H5T_IEEE_F16BE))
p_type = H5Tcopy(H5T_IEEE_F16BE);
else if (true == H5Tequal(tid, H5T_FLOAT_BFLOAT16LE) ||
true == H5Tequal(tid, H5T_FLOAT_BFLOAT16BE))
p_type = H5Tcopy(H5T_FLOAT_BFLOAT16BE);
}
else if (size == 4)
p_type = H5Tcopy(H5T_IEEE_F32BE);
else if (size == 8)