pnorbert
commented
5 years ago Hi Kaiyuan,
I think the skel example code is buggy. It declares the arrays wrong. 'me' is supposed to be a 128 element long 1D array, filled with some values. But only a single element is written (on every process) and the offset is outside the global boundary (0-127)
ADIOS/examples/skel/gts$ /opt/adios1/bin/bpls -l out_restart_write_1 -D me integer me {128} = -1067922552 / -574985336 / null / null step 0: block 0: [128:128] = -844620920 / -844620920/ N/A / N/A block 1: [128:128] = -763262072 / -763262072/ N/A / N/A block 2: [128:128] = -1067922552 / -1067922552/ N/A / N/A block 3: [128:128] = -574985336 / -574985336/ N/A / N/A
Reading the array will try to get the whole array, from 0:127 but that is entirely missing. It is not an error, missing parts of an array are unmodified in the reading. So the test "works" because it has nothing to do.
What are you trying to achieve with adios 1.13? We moved onto adios 2.x a long time ago.
Best regards Norbert
On Sun, Feb 10, 2019 at 2:17 AM Kaiyuan Hou notifications@github.com wrote:
Hi: I followed the steps in the document to generate and build the gts benchmark in examples/skel I edited gts.xml to use MPI method. I also edited gts_params.xml top use MPI method and to run on 1 processes (also tried 4 as well as leaving it 128). After I ran the program, I use examples/C/read_all/read_all to read the generated BP file. I found that the API fails to read all non-scalar variables. I tried to modify the array value in the benchmark program, the change do affect min and max shown by the read_all program, however, the content of the variable remains 0. I tried to debug the read_all program, I found that adios_perform_reads return without reading any data (The buffer remains unchanged). Anyone know what went wrong?
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khou2020
Hi: I followed the steps in the document to generate and build the gts benchmark in examples/skel I edited gts.xml to use MPI method. I also edited gts_params.xml top use MPI method and to run on 1 processes (also tried 4 as well as leaving it 128). After I ran the program, I use examples/C/read_all/read_all to read the generated BP file. I found that the API fails to read all non-scalar variables. I tried to modify the array value in the benchmark program, the change do affect min and max shown by the read_all program, however, the content of the variable remains 0. I tried to debug the read_all program, I found that adios_perform_reads return without reading any data (The buffer remains unchanged). Anyone know what went wrong?