svdComplexDevice1.dll called by Java application svdComplexDevice1X64

A Visual Studio 2022 project and a Java application project are presented. The VS2022 project generates a DLL file that is called by the Java application via JNA in Windows 11 environment. CUDA and CULA are involved.

This Java application is used in:
Denoising NMR time-domain signal by singular-value decomposition accelerated by graphics processing units,
Pascal P. Man, Christian Bonhomme, and Florence Babonneau
Solid State Nucl. Magn. Reson. 61-62, 28-34 (2014). Abstract

* Outline *

CULA installation
svdComplexDevice1 DLL project in MS Visual Studio 2022
Java environment installation
svdComplexDevice1X64 Java application project in Eclipse IDE
References

CULA installation

Install CULA Dense R15 for Windows (Universal).
Its folder location is C:\Program Files\CULA\R15.

svdComplexDevice1 DLL project in MS Visual Studio 2022

In Visual Studio 2022 panel, select Create a new Project.
In Create a new project panel, select Dynamic-Link Library (DLL)

Click Next button.
In Configure a new project panel, provid the name of the project: svdComplexDevice1

Click Create button.
The Visual Studio editor appears with a dllmain.cpp file.

Four files are generated: dllmain.cpp, pch.cpp, pch.h, and framework.h
Right click the folder of Source Files in Solution Explorer for adding a new item.
Select Add then New Item...
Add New Item panel appears.
Select C++ File (.cpp).
Provid the Name: svdComplexDevice1.cpp
Click Add button.
An empty svdComplexDevice1.cpp file is created.
Open svdComplexDevice1.cpp.
Copy and paste its content into the empty source file svdComplexDevice1.cpp.
Right click the folder of Header Files in Solution Explorer for adding a new item...
Select Add then New Item.
Add New Item panel appears.
Select Header File (.h).
Provid the Name: svdComplexDevice1.h
Click Add button.
An empty svdComplexDevice1.h file is created.
Open svdComplexDevice1.h.
Copy and paste its content into the empty Header File svdComplexDevice1.h.
Right click the file svdComplexDevice1.cpp in Solution Explorer. Select Properties.
The Item Type is C/C++ compiler. Close the panel.
Right click the file svdComplexDevice1.h in Solution Explorer. Select Properties.
The Item Type is C/C++ header. Close the panel.
Right click the project svdComplexDevice1 in Solution Explorer. Select Properties, then VC++ Directories.

Add C:\Program Files\CULA\R15\bin64; in Executable Directories.

Add C:\Program Files\CULA\R15\include;C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.5\include; in Include Directories.

Add C:\Program Files\CULA\R15\lib64;C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.5\lib\x64; in Library Directories.
Select Linker then Input.
Add cula_core.lib;cula_lapack.lib;cudart.lib; in Additional Dependencies.

Click Appliquer button then OK button.
Select Build menu then Build Solution.

The file svdComplexDevice1.dll with 71 kbit size is generated in the folder C:\Users\pm\source\repos\svdComplexDevice1\x64\Debug.

Java environment installation

Install Eclipse IDE 2024-09 R Packages for Windows with Eclipse Installer 2024-09 R: eclipse-inst-jre-win64.exe.

Select Eclipse IDE for Java Developers.
Install Oracle JDK Development Kit 21.0.5 for 64-bit Windows: jdk-21_windows-x64_bin.exe
Interface Observer and class Observable are depreciated since Java version 9.
Download two Java Native Access executable files: jna-5.15.0.jar and jna-platform-5.15.0.jar.
The four CULA DLL files, cula_lapack.dll, cula_core.dll, cublas64_42_6.dll, and cudart64_42_6.dll, are located at C:\Program Files\CULA\R15\bin64.
My Java application folder location is C:\Users\pm\eclipse-workspace.

svdComplexDevice1X64 Java application project in Eclipse IDE

Open Eclipse IDE 2024-09.
Select Window menu then Preferences.
Click Java then Installed JREs.
Click Add button. Select Standard VM then click Next > button.
Click Directory.. button. Select JRE folder or JDK folder. Click Finish button.
Tick jdk-21 (default)

Click Apply button.
Click Compiler.
Choose 21 for Compiler compliance level.

Click Apply and Close button.
These settings will be effective for new projects.
Select Create a Java project in Eclipse IDE.
Provid the project name: svdComplexDeviceX64

Click Finish button.
The project folder appears in Package Explorer.
The file .classpath in the project folder located at C:\Users\pm\eclipse-workspace\svdComplexDevice1X64 is filled.
Open the project folder.
Transfer seven files into the project folder: svdComplexDevice1.dll, cula_lapack.dll, cula_core.dll, cudart64_42_6.dll, cublas64_42_6.dll, jna-platform-5.5.jar, and jna-5.5.0.jar.
Right click the project name in Project Explorer then select Refresh.

The seven files appear in Package Explorer.
Right click the source folder src in Project Explorer.
Select New then Package. Provid the package name: nmrsvd

Click Finish button.
Right click the package folder nmrsvd in Project Explorer.
Select New then class. Provid the class name: fidsvd

Click Finish button.
Similarly, generate four Java classes: Frame1, Graph, ListGentle, and SVDMVCModelGPU
Copy and paste fidsvd.java, Frame1.java, Graph.java, ListGentle.java, and SVDMVCModelGPU.java into the five newly generated java files, respectively.
Right click the project folder svdComplexDevice1X64 in Project Explorer.
Select Properties, Java Build Path, Library.
Select Classpath to activate Add buttons.
Click Add JARs... button.
Click the project folder in JAR Selection panel.
Select the two jar files.

Click OK button.
Click Apply and Close button.
A new folder, Referenced Libraries containing the two jna files, is added to the project in Package Explorer.
The file .classpath in the project folder located at C:\Users\pm\eclipse-workspace\svdComplexDevice1X64 is filled.

Two lines concerning with jna files are added.
Select Run menu then Run Configuration...
Click Java Application then New_configuration.

Click Run button.
Save and Launch panel appears.

Click OK button.
The Java application panel appears.