General :: Error Opening Matrix File (null) For Reading"

I have installed CUDA-BLASTP on C2050.It is giving me an Error:"Bad address Error opening matrix file (null) for reading" while i am running with following query file and dataset:

./CUDA-BLASTP -i ./data/raimondii_contigs.fasta -d ./data/DB_sorted.fasta

and i am using BLOSUM62 as a matrix file which is already present in package.

And getting the error:"Error happened when the number of GPUs is 0" while i am running CUDABLASTP with a part of dataset taking as a query file and dataset is same. above mentioned error is comming from file "CUDA_Blast.cu" included in package.

else
{
printf("Error happened when the number of GPUs is %d
", localGPU_N);
exit(0);
}