[DEADLOCK] in target regions using OMP parallel and parameters
Look at the following code:subroutine changeDevice2(vals,xMax,val) implicit none integer :: xMax, val, i integer, dimension(xMax) :: vals !$omp target !$omp parallel do do i=1,xMax if(vals(0).EQ.val)...
View ArticleSegmentation fault whith OMP 4.0 map of larger array
When trying to offload an array that exceeds a specific size, the program fails with "offload error: process on the device 0 was terminated by signal 11 (SIGSEGV)"Here is some test code. The first...
View ArticleQSORT Problem
UBROUTINE call_qsortI'm having some problems with the QSORT subroutine. I have some code along the lines of the given below. The user-defined ordering function is called "compare". SUBROUTINE...
View ArticleFortran Preprocessor: #endif creates a blank line
Hi ,I have a quick question regarding the #ifdef and #endif for preprocessing. I have the following code piece in my fpp file:#ifdef USE_SIMD !DIR$ SIMD #endif do i = is, ie dF(i + offset_kj) = dF(i +...
View ArticleCALL for attention and discussion: recent paper comparing an equation solver...
Fortran enthusiasts may have seen and/or be interested in the findings and observations in a recent open literature publication by Arabas, et al. at the Institute of Geophysics at the University of...
View Articleifort-14.0 -cpp not referentially transparent
$ cat macro.F90 #define X_LT(a) (a < 3) #define X_GE(a) (!X_LT(a)) #if !X_LT(3) #warning no problem here #endif #if X_GE(3) #warning "syntax error" with ifort, not with gfortran #endif $ ifort -c...
View Article!$OMP SIMD or !DIR$ SIMD ?
Hi,I have two quick questions regarding using SIMD directives.(1) I am currently using !DIR$ SIMD to help the compiler to vectorize the loops. But I just noticed that in OpenMP 4.0 we have the...
View Articleifort 11.1 and O2 optimization: wrong results
Dear all,The code in question:!################## ! MODULE FOR TYPES !################## MODULE mod_types IMPLICIT NONE PRIVATE PUBLIC :: type_glob, type_geom, type_edge !------------- ! Type node...
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Deferred length string component: segmentation fault
In a project I am working on, I changed a fixed length string in a structure within a module to a deferred length string and the result was an internal compiler error (the code compiled and ran without...
View Articleinconsistent treatment of TYPE vs. REAL in 'stream' write with Intel...
I'm seeing different bit patterns when I write a REAL variable to file as component of a TYPE as opposed to when it's just a REAL in stream output while using the -convert big_endian option. Given the...
View ArticleSegmentation fault whith OMP 4.0 map of larger array
When trying to offload an array that exceeds a specific size, the program fails with "offload error: process on the device 0 was terminated by signal 11 (SIGSEGV)"Here is some test code. The first...
View ArticleQSORT Problem
UBROUTINE call_qsortI'm having some problems with the QSORT subroutine. I have some code along the lines of the given below. The user-defined ordering function is called "compare". SUBROUTINE...
View ArticleFortran Preprocessor: #endif creates a blank line
Hi ,I have a quick question regarding the #ifdef and #endif for preprocessing. I have the following code piece in my fpp file:#ifdef USE_SIMD !DIR$ SIMD #endif do i = is, ie dF(i + offset_kj) = dF(i +...
View ArticleCALL for attention and discussion: recent paper comparing an equation solver...
Fortran enthusiasts may have seen and/or be interested in the findings and observations in a recent open literature publication by Arabas, et al. at the Institute of Geophysics at the University of...
View Articleifort-14.0 -cpp not referentially transparent
$ cat macro.F90 #define X_LT(a) (a < 3) #define X_GE(a) (!X_LT(a)) #if !X_LT(3) #warning no problem here #endif #if X_GE(3) #warning "syntax error" with ifort, not with gfortran #endif $ ifort -c...
View Article!$OMP SIMD or !DIR$ SIMD ?
Hi,I have two quick questions regarding using SIMD directives.(1) I am currently using !DIR$ SIMD to help the compiler to vectorize the loops. But I just noticed that in OpenMP 4.0 we have the...
View Articleifort 11.1 and O2 optimization: wrong results
Dear all,The code in question:!################## ! MODULE FOR TYPES !################## MODULE mod_types IMPLICIT NONE PRIVATE PUBLIC :: type_glob, type_geom, type_edge !------------- ! Type node...
View ArticleClik here to view.
Deferred length string component: segmentation fault
In a project I am working on, I changed a fixed length string in a structure within a module to a deferred length string and the result was an internal compiler error (the code compiled and ran without...
View Articleinconsistent treatment of TYPE vs. REAL in 'stream' write with Intel...
I'm seeing different bit patterns when I write a REAL variable to file as component of a TYPE as opposed to when it's just a REAL in stream output while using the -convert big_endian option. Given the...
View ArticleDifferent results with -O0 -openmp or -O3 -openmp
Hi all, I developed a FORTRAN (F90) code (its a large model) with the following compilation flags :ifort -g -O0 -openmp -openmp_report -threads -ipoWhen running this code with the above flags, I keep...
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