From 56514a9e27bb098f1ff4eb43136f82c72774d048 Mon Sep 17 00:00:00 2001
From: Jason Wang <jason.ruonan.wang@gmail.com>
Date: Mon, 14 Jun 2021 14:15:57 -0400
Subject: [PATCH] added error message for compressor parameter

---
 source/adios2/engine/table/TableWriter.tcc | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/source/adios2/engine/table/TableWriter.tcc b/source/adios2/engine/table/TableWriter.tcc
index e429b4c057..1c6d1d4ab5 100644
--- a/source/adios2/engine/table/TableWriter.tcc
+++ b/source/adios2/engine/table/TableWriter.tcc
@@ -104,9 +104,18 @@ void TableWriter::PutDeferredCommon(Variable<T> &variable, const T *data)
                 var->m_Type == helper::GetDataType<std::complex<float>>() ||
                 var->m_Type == helper::GetDataType<std::complex<double>>())
             {
-                m_Compressor = new compress::CompressZFP({});
-                var->AddOperation(*m_Compressor,
-                                  {{ops::zfp::key::accuracy, m_UseAccuracy}});
+                if (m_UseAccuracy.empty())
+                {
+                    std::cerr << "Parameter accuracy for lossy compression is "
+                                 "not specified, compressor not added"
+                              << std::endl;
+                }
+                else
+                {
+                    m_Compressor = new compress::CompressZFP({});
+                    var->AddOperation(*m_Compressor, {{ops::zfp::key::accuracy,
+                                                       m_UseAccuracy}});
+                }
             }
 #else
             std::cerr << "ADIOS2 is not compiled with ZFP "