diff --git a/h/HDF5/HDF5-1.10.7-gompi-2021a-serial.eb b/h/HDF5/HDF5-1.10.7-gompi-2021a-serial.eb
new file mode 100644
index 00000000..3d1bd672
--- /dev/null
+++ b/h/HDF5/HDF5-1.10.7-gompi-2021a-serial.eb
@@ -0,0 +1,30 @@
+# IT4Innovations 2022
+# JK
+
+name = 'HDF5'
+version = '1.10.7'
+versionsuffix = '-serial'
+
+homepage = 'https://portal.hdfgroup.org/display/support'
+description = """HDF5 is a data model, library, and file format for storing and managing data.
+ It supports an unlimited variety of datatypes, and is designed for flexible
+ and efficient I/O and for high volume and complex data."""
+
+toolchain = {'name': 'gompi', 'version': '2021a'}
+import os
+if os.environ.get("CLUSTERNAME") in ["KAROLINA"]:
+   toolchainopts = {'pic': True, 'usempi': False, 'optarch': 'march=core-avx2'}
+else:
+   toolchainopts = {'pic': True, 'usempi': False}
+
+
+source_urls = ['https://support.hdfgroup.org/ftp/HDF5/releases/hdf5-%(version_major_minor)s/hdf5-%(version)s/src']
+sources = [SOURCELOWER_TAR_GZ]
+checksums = ['7a1a0a54371275ce2dfc5cd093775bb025c365846512961e7e5ceaecb437ef15']
+
+dependencies = [
+    ('zlib', '1.2.11'),
+    ('Szip', '2.1.1'),
+]
+
+moduleclass = 'data'
diff --git a/h/HDF5/HDF5-1.10.7-iimpi-2021a-serial.eb b/h/HDF5/HDF5-1.10.7-iimpi-2021a-serial.eb
new file mode 100644
index 00000000..50ba1b01
--- /dev/null
+++ b/h/HDF5/HDF5-1.10.7-iimpi-2021a-serial.eb
@@ -0,0 +1,29 @@
+# IT4Innovations
+# LK JK 2021
+
+name = 'HDF5'
+version = '1.10.7'
+versionsuffix = '-serial'
+
+homepage = 'https://portal.hdfgroup.org/display/support'
+description = """HDF5 is a data model, library, and file format for storing and managing data.
+ It supports an unlimited variety of datatypes, and is designed for flexible
+ and efficient I/O and for high volume and complex data."""
+
+toolchain = {'name': 'iimpi', 'version': '2021a'}
+import os
+if os.environ.get("CLUSTERNAME") in ["KAROLINA"]:
+   toolchainopts = {'pic': True, 'usempi': False, 'optarch': 'march=core-avx2'}
+else:
+   toolchainopts = {'pic': True, 'usempi': False}
+
+source_urls = ['https://support.hdfgroup.org/ftp/HDF5/releases/hdf5-%(version_major_minor)s/hdf5-%(version)s/src']
+sources = [SOURCELOWER_TAR_GZ]
+checksums = ['7a1a0a54371275ce2dfc5cd093775bb025c365846512961e7e5ceaecb437ef15']
+
+dependencies = [
+    ('zlib', '1.2.11'),
+    ('Szip', '2.1.1'),
+]
+
+moduleclass = 'data'
diff --git a/h/HDF5/HDF5-1.12.1-gompi-2021b-serial.eb b/h/HDF5/HDF5-1.12.1-gompi-2021b-serial.eb
new file mode 100644
index 00000000..18bdd175
--- /dev/null
+++ b/h/HDF5/HDF5-1.12.1-gompi-2021b-serial.eb
@@ -0,0 +1,29 @@
+# IT4Innoivations
+# LK JK 2022
+
+name = 'HDF5'
+version = '1.12.1'
+versionsuffix = '-serial'
+
+homepage = 'https://portal.hdfgroup.org/display/support'
+description = """HDF5 is a data model, library, and file format for storing and managing data.
+ It supports an unlimited variety of datatypes, and is designed for flexible
+ and efficient I/O and for high volume and complex data."""
+
+toolchain = {'name': 'gompi', 'version': '2021b'}
+import os
+if os.environ.get("CLUSTERNAME") in ["KAROLINA"]:
+    toolchainopts = {'pic': True, 'usempi': False, 'optarch': 'march=core-avx2'}
+else:
+    toolchainopts = {'pic': True, 'usempi': False}
+
+source_urls = ['https://support.hdfgroup.org/ftp/HDF5/releases/hdf5-%(version_major_minor)s/hdf5-%(version)s/src']
+sources = [SOURCELOWER_TAR_GZ]
+checksums = ['79c66ff67e666665369396e9c90b32e238e501f345afd2234186bfb8331081ca']
+
+dependencies = [
+    ('zlib', '1.2.11'),
+    ('Szip', '2.1.1'),
+]
+
+moduleclass = 'data'
diff --git a/h/HDF5/HDF5-1.12.1-iimpi-2021b-serial.eb b/h/HDF5/HDF5-1.12.1-iimpi-2021b-serial.eb
new file mode 100644
index 00000000..2cd7d722
--- /dev/null
+++ b/h/HDF5/HDF5-1.12.1-iimpi-2021b-serial.eb
@@ -0,0 +1,29 @@
+# IT4Innovations 2022
+# JK
+
+name = 'HDF5'
+version = '1.12.1'
+versionsuffix = '-serial'
+
+homepage = 'https://portal.hdfgroup.org/display/support'
+description = """HDF5 is a data model, library, and file format for storing and managing data.
+ It supports an unlimited variety of datatypes, and is designed for flexible
+ and efficient I/O and for high volume and complex data."""
+
+toolchain = {'name': 'iimpi', 'version': '2021b'}
+import os
+if os.environ.get("CLUSTERNAME") in ["KAROLINA"]:
+    toolchainopts = {'pic': True, 'usempi': False, 'optarch': 'march=core-avx2'}
+else:
+    toolchainopts = {'pic': True, 'usempi': False}
+
+source_urls = ['https://support.hdfgroup.org/ftp/HDF5/releases/hdf5-%(version_major_minor)s/hdf5-%(version)s/src']
+sources = [SOURCELOWER_TAR_GZ]
+checksums = ['79c66ff67e666665369396e9c90b32e238e501f345afd2234186bfb8331081ca']
+
+dependencies = [
+    ('zlib', '1.2.11'),
+    ('Szip', '2.1.1'),
+]
+
+moduleclass = 'data'
diff --git a/h/HDF5/HDF5-1.12.1-iimpi-2021b.eb b/h/HDF5/HDF5-1.12.1-iimpi-2021b.eb
index 5cc5946f..4ad48ed9 100644
--- a/h/HDF5/HDF5-1.12.1-iimpi-2021b.eb
+++ b/h/HDF5/HDF5-1.12.1-iimpi-2021b.eb
@@ -1,5 +1,5 @@
-# IT4Innovations
-# JK 2022
+# IT4Innovations 2022
+# JK
 
 name = 'HDF5'
 version = '1.12.1'
@@ -10,8 +10,6 @@ description = """HDF5 is a data model, library, and file format for storing and
  and efficient I/O and for high volume and complex data."""
 
 toolchain = {'name': 'iimpi', 'version': '2021b'}
-toolchainopts = {'pic': True, 'usempi': True}
-
 import os
 if os.environ.get("CLUSTERNAME") in ["KAROLINA"]:
     toolchainopts = {'pic': True, 'usempi': True, 'optarch': 'march=core-avx2'}