From 996a7a79eac9fb4bae7188d243a6672ace0a0385 Mon Sep 17 00:00:00 2001
From: crivella <davide.grassano@epfl.ch>
Date: Mon, 10 Nov 2025 17:46:44 +0100
Subject: [PATCH] Add files for `lfoss` toolchain 2025b

---
 .../f/FFTW.MPI/FFTW.MPI-3.3.10-lompi-2025b.eb | 19 +++++++++
 .../FFTW/FFTW-3.3.10-llvm-compilers-20.1.8.eb | 21 ++++++++++
 easybuild/easyconfigs/l/lfoss/lfoss-2025b.eb  | 28 +++++++++++++
 .../ScaLAPACK-2.2.2-lompi-2025b-fb.eb         | 42 +++++++++++++++++++
 4 files changed, 110 insertions(+)
 create mode 100644 easybuild/easyconfigs/f/FFTW.MPI/FFTW.MPI-3.3.10-lompi-2025b.eb
 create mode 100644 easybuild/easyconfigs/f/FFTW/FFTW-3.3.10-llvm-compilers-20.1.8.eb
 create mode 100644 easybuild/easyconfigs/l/lfoss/lfoss-2025b.eb
 create mode 100644 easybuild/easyconfigs/s/ScaLAPACK/ScaLAPACK-2.2.2-lompi-2025b-fb.eb

diff --git a/easybuild/easyconfigs/f/FFTW.MPI/FFTW.MPI-3.3.10-lompi-2025b.eb b/easybuild/easyconfigs/f/FFTW.MPI/FFTW.MPI-3.3.10-lompi-2025b.eb
new file mode 100644
index 00000000000..26a2b8a664f
--- /dev/null
+++ b/easybuild/easyconfigs/f/FFTW.MPI/FFTW.MPI-3.3.10-lompi-2025b.eb
@@ -0,0 +1,19 @@
+name = 'FFTW.MPI'
+version = '3.3.10'
+
+homepage = 'https://www.fftw.org'
+description = """FFTW is a C subroutine library for computing the discrete Fourier transform (DFT)
+in one or more dimensions, of arbitrary input size, and of both real and complex data."""
+
+toolchain = {'name': 'lompi', 'version': '2025b'}
+toolchainopts = {'pic': True}
+
+source_urls = [homepage]
+sources = ['fftw-%(version)s.tar.gz']
+checksums = ['56c932549852cddcfafdab3820b0200c7742675be92179e59e6215b340e26467']
+
+dependencies = [('FFTW', '3.3.10')]
+
+runtest = 'check'
+
+moduleclass = 'numlib'
diff --git a/easybuild/easyconfigs/f/FFTW/FFTW-3.3.10-llvm-compilers-20.1.8.eb b/easybuild/easyconfigs/f/FFTW/FFTW-3.3.10-llvm-compilers-20.1.8.eb
new file mode 100644
index 00000000000..8d140d1a310
--- /dev/null
+++ b/easybuild/easyconfigs/f/FFTW/FFTW-3.3.10-llvm-compilers-20.1.8.eb
@@ -0,0 +1,21 @@
+name = 'FFTW'
+version = '3.3.10'
+
+homepage = 'https://www.fftw.org'
+description = """FFTW is a C subroutine library for computing the discrete Fourier transform (DFT)
+in one or more dimensions, of arbitrary input size, and of both real and complex data."""
+
+toolchain = {'name': 'llvm-compilers', 'version': '20.1.8'}
+toolchainopts = {'pic': True}
+
+source_urls = [homepage]
+sources = [SOURCELOWER_TAR_GZ]
+checksums = ['56c932549852cddcfafdab3820b0200c7742675be92179e59e6215b340e26467']
+
+runtest = 'check'
+
+# Right now FFTW checks for GCC>4.6, (specifically GCC) when quad precision is enabled
+# Should check can be safely disabled in order to compile with LLVM
+with_quad_prec = False
+
+moduleclass = 'numlib'
diff --git a/easybuild/easyconfigs/l/lfoss/lfoss-2025b.eb b/easybuild/easyconfigs/l/lfoss/lfoss-2025b.eb
new file mode 100644
index 00000000000..d9f09eafda3
--- /dev/null
+++ b/easybuild/easyconfigs/l/lfoss/lfoss-2025b.eb
@@ -0,0 +1,28 @@
+easyblock = 'Toolchain'
+
+name = 'lfoss'
+version = '2025b'
+
+homepage = 'https://easybuild.readthedocs.io/en/master/Common-toolchains.html#foss-toolchain'
+description = """GNU Compiler Collection (GCC) based compiler toolchain, including
+ OpenMPI for MPI support, OpenBLAS (BLAS and LAPACK support), FFTW and ScaLAPACK."""
+
+toolchain = SYSTEM
+
+local_llvmver = '20.1.8'
+
+# toolchain used to build foss dependencies
+local_comp_mpi_tc = ('lompi', version)
+
+# we need GCC and OpenMPI as explicit dependencies instead of gompi toolchain
+# because of toolchain preparation functions
+dependencies = [
+    ('llvm-compilers', local_llvmver),
+    ('OpenMPI', '5.0.8', '', ('llvm-compilers', local_llvmver)),
+    ('FlexiBLAS', '3.4.5', '', ('llvm-compilers', local_llvmver)),
+    ('FFTW', '3.3.10', '', ('llvm-compilers', local_llvmver)),
+    ('FFTW.MPI', '3.3.10', '', local_comp_mpi_tc),
+    ('ScaLAPACK', '2.2.2', '-fb', local_comp_mpi_tc),
+]
+
+moduleclass = 'toolchain'
diff --git a/easybuild/easyconfigs/s/ScaLAPACK/ScaLAPACK-2.2.2-lompi-2025b-fb.eb b/easybuild/easyconfigs/s/ScaLAPACK/ScaLAPACK-2.2.2-lompi-2025b-fb.eb
new file mode 100644
index 00000000000..0e6e5ec8098
--- /dev/null
+++ b/easybuild/easyconfigs/s/ScaLAPACK/ScaLAPACK-2.2.2-lompi-2025b-fb.eb
@@ -0,0 +1,42 @@
+name = 'ScaLAPACK'
+version = '2.2.2'
+versionsuffix = '-fb'
+
+homepage = 'https://www.netlib.org/scalapack/'
+description = """The ScaLAPACK (or Scalable LAPACK) library includes a subset of LAPACK routines
+ redesigned for distributed memory MIMD parallel computers."""
+
+toolchain = {'name': 'lompi', 'version': '2025b'}
+toolchainopts = {
+    'extra_cflags': '-std=c89',  # See https://github.com/Reference-ScaLAPACK/scalapack/issues/31
+    'extra_fflags': '-lpthread', 'openmp': True, 'pic': True, 'usempi': True
+}
+
+source_urls = ['https://github.com/Reference-ScaLAPACK/scalapack/archive/refs/tags/']
+sources = ['v%(version)s.tar.gz']
+checksums = ['a2f0c9180a210bf7ffe126c9cb81099cf337da1a7120ddb4cbe4894eb7b7d022']
+
+builddependencies = [
+    ('CMake', '4.0.3'),
+]
+
+dependencies = [
+    ('FlexiBLAS', '3.4.5'),
+]
+
+# Other CMakeLists.txt in ScaLAPACK 2.2.2 are CMake 3.5+
+preconfigopts = 'sed -i "s/VERSION 2.8/VERSION 3.5/" %(start_dir)s/BLACS/INSTALL/CMakeLists.txt && '
+
+# Config Opts based on AOCL User Guide:
+# https://developer.amd.com/wp-content/resources/AOCL_User%20Guide_2.2.pdf
+
+configopts = '-DBUILD_SHARED_LIBS=ON '
+configopts += '-DBLAS_LIBRARIES="$EBROOTFLEXIBLAS/lib/libflexiblas.%s" ' % SHLIB_EXT
+configopts += '-DLAPACK_LIBRARIES="$EBROOTFLEXIBLAS/lib/libflexiblas.%s" ' % SHLIB_EXT
+
+sanity_check_paths = {
+    'files': ['lib/libscalapack.%s' % SHLIB_EXT, 'lib64/libscalapack.%s' % SHLIB_EXT],
+    'dirs': ["lib", "lib64"],
+}
+
+moduleclass = 'numlib'