Which time of algorithm you are looking for??

Means list some specific names

i'm more interested in search algorithms particularly graph ones like DFS and BFS, and A* is also good,

Dear Hassan,

Since you have tagged C and C++, I am not sure what you are exactly looking for. If you are interested to see some codes on C/C++, this is an example:

http://www.cs.cmu.edu/~pbbs/benchmarks.html

But if you are specifically focused on GPGPU, some graph algorithms are discussed in this article:

http://ldc.usb.ve/~vtheok/cursos/ci6323/pdf/lecturas/Accelerating%20Large%20Graph%20Algorithms%20on%20the%20GPU%20Using%20CUDA.pdf

You can also look at the attached papers. Some metacode are also reported.

One paper is about thermodynamics, the otherone is about fluid dynamics

In fact, I'm not an expert on the topic. But, I just happen to know that Prof. Kunle Olukotun and his research group in Stanford do very close things:

http://arsenalfc.stanford.edu/kunle/

I think, if you are interested in GPU computing applications, the best way to go for fully implemented CUDA codes are the CUDA samples from NVIDIA. These samples are available online and they cover many diverse applications.