topic Ok, many thanks to all. I in Intel® oneAPI Math Kernel Library

DftiCommitDescriptor error 3

Filip_K_ — Wed, 30 Nov 2016 15:23:19 GMT

Hi, I upgraded MKL to 2016.3.207 and I get from code that worked flawlessly for years error code 3. It looks like this:

   DFTI_Descriptor_struct *ds1;
   MKL_LONG retval = DFTI_NO_ERROR;
   MKL_LONG sizes[3] = {data->NZ, data->NY, data->NX - 2};
   MKL_LONG strides_in[4] = {0, data->NXY, data->NX, 1};
   MKL_LONG strides_out[4] = {0, data->NXY/2, data->NX/2 ,1}; // data.NXY/2 = (data.NX/2) * data.NY

retval |= DftiCreateDescriptor(&ds1, DFTI_SINGLE, DFTI_REAL, 3, sizes);

double scale = 1;
   retval |= DftiSetValue(ds1, DFTI_FORWARD_SCALE, scale);
   retval |= DftiSetValue(ds1, DFTI_PACKED_FORMAT, DFTI_CCE_FORMAT);
   retval |= DftiSetValue(ds1, DFTI_INPUT_STRIDES, strides_in);
   retval |= DftiSetValue(ds1, DFTI_OUTPUT_STRIDES, strides_out);
   retval |= DftiSetValue(ds1, DFTI_CONJUGATE_EVEN_STORAGE, DFTI_COMPLEX_COMPLEX);
   retval |= DftiSetValue(ds1, DFTI_REAL_STORAGE, DFTI_REAL_REAL);
   retval |= DftiCommitDescriptor(ds1);

char *error_message = DftiErrorMessage(retval);

any idea whats wrong? I've forgotten - VC 2015.

Filip

Hi,

Jing_Xu — Thu, 01 Dec 2016 01:03:00 GMT

Hi,

Could you share how the following array were set with us, please?

MKL_LONG sizes[3] = {data->NZ, data->NY, data->NX - 2};
MKL_LONG strides_in[4] = {0, data->NXY, data->NX, 1};
MKL_LONG strides_out[4] = {0, data->NXY/2, data->NX/2 ,1};

What were the values?

Besides, could you share your MKL version information with us, please? The version information can be retrieved with the following code.

MKLVersion Version;
mkl_get_version(&Version);
printf("Major version: %d\n", Version.MajorVersion);
printf("Minor version: %d\n", Version.MinorVersion);
printf("Update version: %d\n", Version.UpdateVersion);
printf("Product status: %s\n", Version.ProductStatus);
printf("Build: %s\n", Version.Build);
printf("Platform: %s\n", Version.Platform);
printf("Processor optimization: %s\n", Version.Processor);
printf("================================================================\n");
printf("\n");

By the way, what's the content of error_message (printf("%s\n", error_message))?

Hi Filip,

Zhen_Z_Intel — Thu, 01 Dec 2016 03:07:00 GMT

Hi Filip,

I think your equation for input strides & output strides could only be used for even, for ode number, it would be wrong. If you are using CCE storage, the strides normally set as:

dim[3]={N1, N2, N3};
out[4]={0, N2*(N3/2+1), (N3/2+1), 1};
in[4]={0, 2*N2*(N3/N2+1), 2*(N3/2+1), 1};

Thus, in your program, should be:

dim[3]={Z,Y, (X-2)};
out[4]={0, Y*X/2, X/2, 1};
in[4]={0, 2*Y*(X/2), 2*(X/2), 1};

If you replace 2*(X/2) to X for instance X==11, the result is incorrect. Another point, may I ask which transform you are going to do, forward or backward? input & output strides would be opposite if you use backward.

Best regards,
Fiona

Hi,

Filip_K_ — Mon, 05 Dec 2016 08:53:55 GMT

Hi,

here are the data:

sizes   0x00000000003d4de8 {80, 768, 1080}   long[3]
strides_in   0x00000000003d4e18 {0, 830976, 1082, 1}   long[4]
strides_out   0x00000000003d4e48 {0, 415488, 541, 1}   long[4]

Version   {MajorVersion=11 MinorVersion=3 UpdateVersion=3 ...}   MKLVersion
     MajorVersion   11   int
     MinorVersion   3   int
     UpdateVersion   3   int
               ProductStatus   0x000007fedaf85fa0 "Product"   char *
               Build   0x000007fedaf85fa8 "20160413"   char *
               Processor   0x000007fedaf86160 "Intel(R) Advanced Vector Extensions (Intel(R) AVX) enabled processors"   char *
               Platform   0x000007fedaf86000 "Intel(R) 64 architecture"   char *

error_message 0x000007fedaf78b04 "Intel MKL DFTI ERROR: Inconsistent configuration parameters" char *

even when I tried to set sizes manualy like:

MKL_LONG sizes[3] = { 128, 1024, 1024 };
MKL_LONG strides_in[4] = { 0, 1024* 1026, 1026, 1 };
MKL_LONG strides_out[4] = { 0, 513*1024, 513, 1 };

I got the same error message.

best regards

Filip

Hi,

Jing_Xu — Tue, 06 Dec 2016 02:17:32 GMT

Hi,

We could not reproduce the error using your code and data. The output of DftiErrorMessage is No error.

Could you share your test code with us for investigation, please?

Hi, I tested I created the

Filip_K_ — Tue, 13 Dec 2016 08:04:44 GMT

Hi, I tested I created the project and it produces another error message. I dont know how it is possible. I even found another project with the same library files and it works. So it must be something deep in the project settings.

here is the link: https://www.dropbox.com/s/srot7ztvjgbebid/Win32Project1.zip?dl=0

thanks Filip

Ok, many thanks to all. I

Filip_K_ — Tue, 13 Dec 2016 11:45:27 GMT

Ok, many thanks to all. I found it. There is a new setting in VC2015 together with new MKL. I had to switch on "UseMKL" from No to Parallel and it works now. It was not there before so it was not obvious to me.

thanks to all

Filip