Search found 6 matches

by gaurav
Thu Jul 22, 2010 12:12 am
Forum: User discussion
Topic: CPU vs GPU speed
Replies: 5
Views: 5673

Re: CPU vs GPU speed

Dear Allen, Thanks a lot for the detailed info. It does make sense to me. However, I have the following comments: (i) I think 'cgetrf' should be working in single precision (following the LAPACK naming conventions 'c' for single precision complex and 'z' for double precision complex); looking at 'te...
by gaurav
Sat Jul 17, 2010 7:20 pm
Forum: User discussion
Topic: CPU vs GPU speed
Replies: 5
Views: 5673

Re: CPU vs GPU speed

Following is the information about the CPU & the GPU I'm using:
CPU: Two Intel Xeon E5530 quad-cores (2.4 GHz)
GPU: One NVIDIA Tesla C1060

Please let me know if more information is required.

Thanks,
Gaurav
by gaurav
Thu Jul 15, 2010 11:57 pm
Forum: User discussion
Topic: CPU vs GPU speed
Replies: 5
Views: 5673

CPU vs GPU speed

Hi, While running the supplied 'testing_cgetrf_gpu', I observed that using a parallel CPU compilation achieves greater GFLOP/s compared to that attained by the GPU. Following are part of the result tables: a) Sequential CPU vs GPU N CPU GFlop/s GPU GFlop/s ||PA-LU|| / (||A||*N) =====================...
by gaurav
Mon Nov 16, 2009 1:35 pm
Forum: User discussion
Topic: Using MAGMA without Intel MKL
Replies: 13
Views: 39383

Re: Using MAGMA without Intel MKL

I have MKL 10.2.2.25. I replaced "-lmkl_em64t" with "-lmkl_sequential -lmkl_intel_lp64 -lmkl_core" and it works for me.
by gaurav
Thu Aug 13, 2009 4:27 pm
Forum: User discussion
Topic: unable to link -lmagma
Replies: 4
Views: 12617

Re: unable to link -lmagma

Oh! That would be the problem then. I have a 32-bit machine (and OS). I'll wait for the 32-bit version of MAGMA then.
I'm using CUDA 2.2, and other CUDA codes that I've written work well.

Thanks a lot!
Gaurav
by gaurav
Thu Aug 13, 2009 1:28 pm
Forum: User discussion
Topic: unable to link -lmagma
Replies: 4
Views: 12617

unable to link -lmagma

Hi, I am running Ubuntu-8.10 with gcc: version 4.3.2. I tried to do a 'make' from within the (MAGMA_DIR)/testing, and it returned with the following error: gcc -fPIC testing_spotrf.o -o testing_spotrf -L../lib \ -lcuda -lmagma -lmagmablas -L/home/gaurav/intel/mkl/10.0.1.014/lib/em64t -L/usr/local/cu...