rogerioag / openmp.info

OpenMP Information Repository

Rogério Aparecido Gonçalves

Doutor em Ciência da Computação pelo Programa de Pós-Graduação em Ciência da Computação da Universidade de São Paulo (IME-USP). Bacharel em Informática pela Universidade Estadual de Maringá (2005) e Mestre em Ciência da Computação pela mesma instituição (2008). Professor do Ensino Básico, Técnico e Tecnológico no Departamento Acadêmico de Computação (DACOM) da Universidade Tecnológica Federal do Paraná (UTFPR), campus de Campo Mourão. Sou revisor do journal Springer Computing e de Conferências como o Simpósio Brasileiro de Sistemas Computacionais (WSCAD), do Workshop em Desempenho de Sistemas Computacionais e de Comunicação (WPerformance) do CSBC e da trilha Latin.Science do Latinoware. Líder do Grupo de Pesquisa Computação de Alto Desempenho e Sistemas Distribuídos da UTFPR.

Interesses

Tenho experiência na área de Ciência da Computação, tendo como principais linhas de pesquisa e de interesse Arquitetura de Computadores, Computação Paralela, Computação Heterogênea, Compiladores e Runtimes voltados para Computação Paralela como OpenMP e CUDA. Estou explorando a área de Blockchain, buscando temas para pesquisa e desenvolvimento de aplicações.

Atividade

Contatos

openmp.info's Issues

Baixar o libgomp.map e libgomp_g.h e atualizar a biblioteca do simple-omp-hook

Implementar as novas funções para o hookomp da última versão do libgomp (gcc 8.1).
Arquivo relacionado: https://github.com/rogerioag/openmp.info/blob/master/src/simple-omp-hook/hookomp.h

Passos:

1. Recuperar o arquivo libgomp.map

svn export svn://gcc.gnu.org/svn/gcc/tags/gcc_8_1_0_release/libgomp/libgomp.map gcc_8_1_0_release.map

2. Recuperar o libgomp_g.h

svn export svn://gcc.gnu.org/svn/gcc/tags/gcc_8_1_0_release/libgomp/libgomp_g.h gcc_8_1_0_release_libgomp_g.h

3. Implementar no hookomp.h as funções de interceptação e as funções pre_ e post_.
4. Implementar a contagem da ocorrência de diretivas para bencharks, inicialmente para o polybench-acc (https://github.com/cavazos-lab/PolyBench-ACC) versão OpenMP.

Criei o wiki para registrarmos as discussões e ideias: https://github.com/rogerioag/openmp.info/wiki

Survey Question on the For loop in source file. https:/github.com/rogerioag/openmp.info/blob/master/src/check-libgomp/python/gcc_4_8_1_release/testsuite/libgomp.c/loop-13.c line 19

Hello Sir/ Madam
We are from a research group at Iowa State University, USA. We want to do a survey on Github developers on the methods they used for paralleling their code. To do the survey, We want to ask three questions about this for loop:

Can you briefly explain the purpose of using pragma for this case? If the pragma contained reduction and private clauses, can you briefly mention the purposes of variables in those clauses?

How much confidence do you have about the correctness of this implementation? You can choose from 1-5 with 1 as the lowest confidence score and 5 as the highest confidence score.

(Optional) Do you actually run (interpret the code with compilation and pass input/get output) the code and see the optimization of parallelization? Yes/No

If yes, can you provide the information of what are the input and expected output of this program (the input that caused the program to run through this for-loop).
The for loop is from line 19 of file https:/github.com/rogerioag/openmp.info/blob/master/src/check-libgomp/python/gcc_4_8_1_release/testsuite/libgomp.c/loop-13.c
Here is a part of the code:

#pragma omp parallel for reduction(+: l)
for (i = ji; i < ki; i++)
l++;

Survey Question on the For loop in source file src/check-libgomp/python/gcc_4_8_1_release/testsuite/libgomp.c/loop-13.c line 144

Hello Sir/ Madam
We are from a research group at Iowa State University, USA. We want to do a survey on Github developers on the methods they used for paralleling their code. To do the survey, We want to ask three questions:

1. Have you ever tried to add pragma for that 'for' loop?.

2. How much confidence do you have about the correctness of this implementation? You can choose from 1-5 with 1 as the lowest confidence score and 5 as the highest confidence.

3. (Optional) Do you actually run (interpret the code with compilation and pass input/get output) the code? Yes/No

• If yes, can you provide the information of what are the input and expected output of this program (the input that caused the program to run through this for-loop).

The for loop is from line 144 of file https:/github.com/rogerioag/openmp.info/blob/master/src/check-libgomp/python/gcc_4_8_1_release/testsuite/libgomp.c/loop-13.c
Here is a part of the code:

nan
for (j = 0; j < 4; j++)
for (i = jll; i < kll; i++)
for (k = 0; k < 5; k += 2)
l++;

Sincerely thanks

Survey Question on the For loop in source file src/check-libgomp/python/gcc_4_8_1_release/testsuite/libgomp.c/loop-14.c line 75

Hello Sir/ Madam
We are from a research group at Iowa State University, USA. We want to do a survey on Github developers on the methods they used for paralleling their code. To do the survey, We want to ask three questions:

1. Have you ever tried to add pragma for that 'for' loop?.

2. How much confidence do you have about the correctness of this implementation? You can choose from 1-5 with 1 as the lowest confidence score and 5 as the highest confidence.

3. (Optional) Do you actually run (interpret the code with compilation and pass input/get output) the code? Yes/No

• If yes, can you provide the information of what are the input and expected output of this program (the input that caused the program to run through this for-loop).

The for loop is from line 75 of file https:/github.com/rogerioag/openmp.info/blob/master/src/check-libgomp/python/gcc_4_8_1_release/testsuite/libgomp.c/loop-14.c
Here is a part of the code:

nan
for (i = ju; i < ku; i++)
l++;

Sincerely thanks

Survey Question on the For loop in source file src/check-libgomp/python/gcc_4_8_1_release/testsuite/libgomp.c/loop-15.c line 40

Hello Sir/ Madam
We are from a research group at Iowa State University, USA. We want to do a survey on Github developers on the methods they used for paralleling their code. To do the survey, We want to ask three questions:

1. Have you ever tried to add pragma for that 'for' loop?.

2. How much confidence do you have about the correctness of this implementation? You can choose from 1-5 with 1 as the lowest confidence score and 5 as the highest confidence.

3. (Optional) Do you actually run (interpret the code with compilation and pass input/get output) the code? Yes/No

• If yes, can you provide the information of what are the input and expected output of this program (the input that caused the program to run through this for-loop).

The for loop is from line 40 of file https:/github.com/rogerioag/openmp.info/blob/master/src/check-libgomp/python/gcc_4_8_1_release/testsuite/libgomp.c/loop-15.c
Here is a part of the code:

nan
for (j2 = 0; j2 < 4; j2++)
for (i = ji; i < ki; i++)
for (k2 = 0; k2 < 5; k2 += 2)
l++;

Sincerely thanks

Survey Question on the For loop in source file https:/github.com/rogerioag/openmp.info/blob/master/src/check-libgomp/python/gcc_4_8_1_release/testsuite/libgomp.c/loop-14.c line 14

Hello Sir/ Madam
We are from a research group at Iowa State University, USA. We want to do a survey on Github developers on the methods they used for paralleling their code. To do the survey, We want to ask three questions about this for loop:

Can you briefly explain the purpose of using pragma for this case? If the pragma contained reduction and private clauses, can you briefly mention the purposes of variables in those clauses?

How much confidence do you have about the correctness of this implementation? You can choose from 1-5 with 1 as the lowest confidence score and 5 as the highest confidence score.

(Optional) Do you actually run (interpret the code with compilation and pass input/get output) the code and see the optimization of parallelization? Yes/No

If yes, can you provide the information of what are the input and expected output of this program (the input that caused the program to run through this for-loop).
The for loop is from line 14 of file
Here is a part of the code:
https:/github.com/rogerioag/openmp.info/blob/master/src/check-libgomp/python/gcc_4_8_1_release/testsuite/libgomp.c/loop-14.c

#pragma omp for reduction(+: l) schedule(static, 2)
for (i = ji; i < ki; i++)
l++;